Bucherer clock company It has a cream-colored case with a bright floral design and gold trim, and the hands and hour markers glow in the dark. Brass and Glass Carriage Clock. It ticks. Hughenin and Charles Bonny founded a watch and clock company in Biel, Canton de Berne, named Concord Watch Co. Finden Sie ein Bucherer Geschäft in Ihrer Nähe. The logo, which is stamped on the dial at 12 o’clock, features the new look, including “LUCERNE 1888,” which is an homage to the company’s origins in Lucerne, Switzerland that dates back to 1888. 2001 - 2007. IBM/ITR Time Clocks. 1900, Ansonia Clock Co. 13. The Mikrolisk trademark index has only 5 entries for Bucherer. The storefront reads, “Bucherer 1888. Free shipping on many items | Browse your favorite brands | affordable prices. Bucherer Ltd. Bucherer is one of the few Swiss watch manufacturers that is still owned by its founding family. factory in Zeeland and it is an incredibly organized plant reminding me of an automotive manufacturing . Sep 23, 2022 · Now though, L’Epée teams up with high-end retailer Bucherer to create a unique series of the Time Fast clock, all finished in signature Bucherer BLUE. 38. Entdecken Sie unsere Auswahl an Uhren und Schmuck und profitieren Sie von exklusiven Boutique-Services. The dial is stamped Bucherer - a Swiss company famous for clocks and watches. & Germany ,Not Working. Measures 4 3/4" x 3 1/4" x 2". A. Sep 3, 2021 · You see, the Carl F. Bucherer was also founded in 2001, continuing the Bucherer family’s watchmaking tradition that stretches back to 1919. Glen Ellyn , Illinois (IL) 60137 United States +1 630 790 3272 Jul 19, 2019 · It has to be remembered regardless of when the OP's clock was made, it is a very fine example of what was one of the most popular mid-range chime clocks of the early 20th century. 30 ROLEX ROLEX CERTIFIED PRE-OWNED World of Bucherer Fine Jewellery Show all High Jewellery Classics Show all Collections Baguette Love Inner Fire Lacrima Link Pastello Peekaboo Rock Diamonds Stretchy The Solitaire Collection Red Carpet Show All Watches Watches & Wonders Bucherer Exclusives Masterworks Men Women Unisex Rolex Rolex Armin Strom Aug 18, 2019 · Winterhalder and Hoffmeier – based in Black Forest Germany, the company is a reputed manufacturer of fine Victorian clocks and grandfather clocks. Vintage Bucr musical alarm clock. Privately held company: Owner and CEO - Jupp Philipp Franck Muller: 1992 Geneva: Private company Franck Muller Frédérique Constant SA: 1988 Aletta and Peter Stas Geneva: Subsidiary of Citizen Holdings: Niels Eggerding, Managing Director: Gallet & Company: 1466 Geneva Humbertus Gallet Privately held company: General Watch Co: Girard-Perregaux The separate company Carl F. We are both unfamiliar with the manufacturer,Bucherer and the companys locale. I heard a story that Howard MIller Company person told Hermle rep there's the door don't come back! I have toured the Howard Miller Clock Co. 1888年から時計制作を始めたカール f. S. Trusted Since 1888. Bucherer Desk Clock Reference#: 40632. Bucherer Imhof Swiss Desk Shelf Clock 8-day, 15-jewel Get the best deals for Bucherer Wall Clock at eBay. AN AUTONOMOUS WATCH BRAND AND A NEW ERA. Bucherer Clock In Collectible Alarm Clocks (1930-1969) Bucherer Clock Indiana Collectible Shelf & Mantel Clocks (1930-1969) Bucherer Of Switzerland; Clock Escapement In Collectible Clock Parts; Clock Gears Indiana Wall Clocks; Cloisonne Clock In Antique Clocks; Colonial Clock In Antique Clocks; Colonial Clock In Grandfather Clocks Компания Carl F. , Boston, ship's bell clock and barometer set, 4. 5" dials, on a polished mahogany board. Shop exclusive designs, crafted with precision and sophistication, and enjoy exceptional service tailored to your style. Jörg G. The fifth could be also. Located on 12 East 57th Street, the new store is an immersive super boutique housing almost 40 luxury brands across 18,379 sq ft of retail space. This clock is in very good vintage condition Wind up desk clock, C. Theme. Hands & hours glow in the dark. In the summer of 1913 the Seth Thomas Clock Company issued Centennial Medals to celebrate the one-hundredth anniversary of the original founding of the company in 1813. E. This clock is a contemporary version and is in excellent condition. Swiss movement. Oct 9, 2018 · I love to tinker around with mechanical objects and fancied my hand at restoring vintage table/ desk clocks from the 60's/ 70's. Clock Instructions. Located at 12 East 57th Street in New York City, the new store is three stories tall and nearly 19,000 square feet – the perfect destination for shopping and servicing all needs related to luxury watches. Bucherer занимается производством часов с 1888 года и известна во всем мире высочайшим качеством, инновациями и новаторским духом. I do not know if the clock works or not, is sold as is. Clocks with three winding arbours chime on the quarter-hour, producing a musical tone. Bucherer mastered the interplay of shape and color even before the prese Feb 28, 2025 · Vintage Imhof Bucherer Swiss Made Brass 8-Day Alarm Clock, Small Tabletop Manual Wind Clock Working Condition ad vertisement by OddDuckVtg Ad vertisement from shop OddDuckVtg OddDuckVtg From shop OddDuckVtg Today, Carl. Learn about our enduring partnership with Rolex, our expansion across Europe, and our commitment to offering the largest selection of luxury watches and fine jewellery. In 2013, Bucherer celebrated its 125th anniversary and opened the world’s largest watch and jewellery store in Paris. ROLEX ROLEX CERTIFIED PRE-OWNED World of Bucherer Fine Jewellery Show all High Jewellery Classics Show all Collections Baguette Love Inner Fire Lacrima Link Pastello Peekaboo Rock Diamonds Stretchy The Solitaire Collection Red Carpet Show All Watches New Arrivals Bucherer Exclusives Masterworks Men Women Unisex Rolex Rolex Armin Strom Baume et Feb 8, 2025 · Carl F. Gustav Becker. 474 N. If it's a Jauch it has to be before 1980 about when they went out of business. Shop New & Pre-Owned Watches With up to 5-Yr Warranty. The Time Fast Forward marks a departure from L'Epée 1839's previous work, innovatively blending elements to great effect. is a New York Domestic Business Corporation filed on September 21, 2007. Discover this great timepiece Heritage Worldtimer 00. It measures 6 inch Antique Tiffany & Co Glass Ball Desk Clock Paperweight IMHOF Swiss Vtg. Discover Bucherer's Certified Pre-Owned watches, offering authenticated luxury timepieces with expert certification. 01 from Carl F. Bucherer and his wife, Luise, chose Falkenplatz in Lucerne, Switzerland for the location of their first storefront. The clock as a whole measures 7 1/2" tall, 7 1/2" wide, and 2 3/4" deep (including the feet). This sweet vintage wind-up alarm clock by Bucherer is in good working order and plays Oh What a Beautiful Morning at the selected time. (also Bucherer Group) is a multibrand watch and jewellery retailer based in Switzerland with over 100 stores worldwide. $0. As of 2021, Jörg remains the chairman of the company's board of directors. Era. Bucherer became the third generation of Bucherers to lead the company in 1976. The 2001 launch of a truly autonomous watch brand, Carl F. I believe them to be absolute bargains! Dr. 1970s BUCHERER Clock-Lighter Swiss Made Today, we have a super cool piece, it is a vintage Bucherer clock-lighter in the original Bucherer display box. Kaufen Sie jetzt bei Bucherer. Ranfft's example of this movement is dated in the mid 70s so your dating supposition is probably correct. Discover our curated selection of luxury watches and fine jewellery from renowned brands. Add to cart options. They created a watch that could also serve as a travel alarm and clock in the 1920s and manufactured it. $ 1,400: 2003-04-01 0403:583 One 18 karat yellow gold BUCHERER clock brooch set with pear-shaped ruby and sapphires and 5 clean such as the celebrated naturalistic works created by Tiffany A guest post by Jonathan Luysterborghs. alarm Cabinet Clock. Vintage BUCHERER CLOCK THERMOMETER Temperature Alarm Battery Coach Style BRASS Bucherer Co. "La Nord" Royal Bonn porcelain china clock, in cream color with sky blue and gold highlights. From its founding in 1888 until its sale in 2023, the company was wholly owned by the Bucherer family, making it one of the oldest luxury Swiss watchmakers continuously held by the founding family. The Carl F. 38 h x 2. Bucherer has also been a trusted Rolex retailer since 1924 — literally during the time of Hans Wilsdorf, making Jörg Bucherer the last person today to have known and worked with the Rolex founder. Lenzkirch ROLEX ROLEX CERTIFIED PRE-OWNED World of Bucherer Fine Jewellery Show all High Jewellery Classics Show all Collections Baguette Love Inner Fire Lacrima Link Pastello Peekaboo Rock Diamonds Stretchy The Solitaire Collection Red Carpet Show All Watches Watches & Wonders Bucherer Exclusives Masterworks Men Women Unisex Rolex Rolex Armin Strom Mar 8, 2020 · Bucherer is a name that likely resonates with a positive sense of familiarity to us watch lovers. Explore a curated selection of pre-owned watches from top brands, backed by Bucherer's trusted expertise and service. I do have my doubts about the shown clock being a war ship clock. On such clocks, the center arbour winds the time train, the left arbour winds the strike train, and the right arbour winds the chime train. Aug 29, 2023 · An oversized clock hangs outside a Bucherer shop in Lucerne. Entdecken Sie die luxuriöse Auswahl an Uhren und Schmuckstücken bei Bucherer. Attractive Imhof made for Bucherer table clock with 8-day movement, innovative case construction with two crystals. The company is still owned and operated by the Bucherer family. Experience the legacy of excellence that defines Bucherer today. 99. 21 from Carl F. Working on photos Check out our imhof bucherer clock selection for the very best in unique or custom, handmade pieces from our clocks shops. Their timepieces are marked with the insignia “W & H Sch. 1959, Chelsea Clock Co. Mar 14, 2024 · Bucherer L'Epée Exclusive Time Machine - Bucherer reference: 1392-063-3 - L'Epée reference: 74. Get the best deals on bucherer clock when you shop the largest online selection at eBay. Click on the link to see the dating charts. Get the best deals for Bucherer Clock at eBay. A fusion of art and mechanics, the clock’s entire 675-component structure is built on an imbalance, on a gentle swing which recalls the ebb and flow of the tides - the perpetual movement of the ocean. In 2022, Bucherer introduced two watches and a race car. The brass case features etched designs on the front corners. Its arrival on the scene is proclaimed by the Patravi TravelTec, a chronograph with COSC-certified chronometer movement and three different time-zones. Bucherer has been crafting watches since 1888 and is internationally renowned for its quality, innovation and pioneering spirit. The back crystal is holding the movement, the front crystal protects the hands. Case Tourneau is the leading authorized watch retailer for top brands. Table clock, L'Epée Time Fast Forged Carbon Fiber, manual winding, Cal. Bucherer, together with Tourneau, accounts for more than 100 points of sales worldwide, and it is also the biggest retail brand in the US. Alarm plays Oh What A Beautiful Morning, Lador Switzerland #1474. Discover the rich history of Bucherer, founded in 1888 by Carl-Friedrich Bucherer in Lucerne. Choose from 2 authentic Bucherer clocks for sale on 1stDibs. of La Chaux de Fonds, Switzerland, was founded ca. Bucherer has been crafting watches since 1888 and is internationally renowned for its quality, innovation, and pioneering spirit. It was founded in 1888 by Carl F. Bucherer recently redesigned their logo, in an apparent effort to rebrand the company, presumably to attract younger buyers. Mar 31, 2025 · Bucherer is a Swiss watch company that has been in business for more than 130 years. Now available exclusively at Bucherer. Bucherer Costello Jewelry Co. Bucherer ist stolz, Teil des globalen Netzwerks offizieller Rolex Fachhändler für Vertrieb und Wartung von Rolex Uhren zu sein. Bucherer, heralds a new era. The name is widely associated with high-quality timepieces, but this company produces jewelry as well. Four of those are certainly associated with Carl F. We love helping people learn to care for their clocks and even teaching them how to fix simpler issues. Laden Sie Bilder hoch, fügen Sie Kaufdetails hinzu und organisieren Sie Ihre Sammlung mit Notizen und wichtigen Dokumenten wie Rechnungen und Zertifikaten – jederzeit und überall zugänglich. Chelsea Clock Company. They were specialized in small clocks and often called the Rolls Royce of table clocks. Shop thousands of new watches with extensive warranties & free shipping. Chime Sequence. Explore a world of timeless elegance with Bucherer. Keystone / Urs Flueeler The announcement of the sale of the Swiss watch and jewellery retailer to Rolex has stunned the luxury world. Bucherer is a Swiss watch company based in Lucerne, Switzerland, which manufactures luxury men's and women's mechanical watches. Kienzle was a world leader in chime clock production and the masses of surviving clocks is a testament to their longevity - and considerate production rates. Atmos Clocks. Bucherer. ブヘラは、その品質と革新性、パイオニア精神で世界に広く知られています。 Dec 27, 2024 · The Horolovar repair guide lists Bucherer as "Importer?" for Koma clocks. Bucherer Heritage collection resides under the universe of “Maison & Heritage”, which as the brand has chosen to reflect the company’s dedication to contemporary craftsmanship and the art of traditional watchmaking that has defined Carl F. Aug 24, 2023 · According to the press release, Bucherer operates more than 100 locations globally. , an independent company within the Bucherer group, since 2003. Bucherer (2) Buffalo Clock Co Bull, John Clock Co Bulle (16) Bulova (13) Bundy Mfg Co (3) Bundy Time Recording Co Bunnell, Edwin Burleigh, TE Jr (8) Burnap, Daniel Burr, Horace Burr, Jonathan (4) Burritt, Joseph Burroughs Co, The (15) Burr and Chittenden (5) Burslem (3) Burtt, Ty (2) Burwell, Austin S Burwell, Elias Burwell and Carter (2 Carl F. Not sure what all they produce other than watch and haven't seen any new clocks. Jean Vincenti & Co. 08. The company's filing status is listed as Inactive - Dissolution By Proclamation / Annulmen and its File Number is 3571077. Bucherer , who also became the namesake of a luxury Swiss watch brand. Bucherer, Swiss watch manufacturer since 1888. The maker of the movement of the clock was Celestin Konrad in Moulier. The company founder, Carl Freidrich Bucherer, first established his business in 1888 as a watch and jewelry retailer. Carriage Clock. ROLEX ROLEX CERTIFIED PRE-OWNED World of Bucherer Fine Jewellery Show all High Jewellery Classics Show all Collections Baguette Love Inner Fire Lacrima Link Pastello Peekaboo Rock Diamonds Stretchy The Solitaire Collection Red Carpet Show All Watches Watches & Wonders Bucherer Exclusives Masterworks Men Women Unisex Rolex Rolex Armin Strom The Destination for Luxury Watches & Exquisite Fine Jewelry. (1908) - NORTH WATCH COMPANY (1970-?) In 1908, Walter E. FACTORY / HOUSE: Bucherer Jewelers STYLE / REFERENCE: Art Deco Desk Clock METAL / MATERIAL: Stone Category Vintage 1930s Swiss Art Deco Table Clocks and Desk Clocks Feb 25, 2015 · the Swiss clock and watch industry did supply German military during WW 2. I knw the company started 1920s and took a chance with Rolex which at the time was just starting. Bucherer clock, 1930's Deco desk clock, 8 day clock, deco marble clock, Small table clock, Gentlemans' Gift Vintage MCM United Clock Co Mar 13, 2001 · Discover this great timepiece Heritage Worldtimer 00. 10805. Opens in a new window or tab. Mid 20th Century (1941-1969) Model. Highly collectible and decorative . None. Ihre unverzichtbare App zur Verwaltung von Uhren- und Schmuckkollektionen. ” Its glass counters have been swapped out for other displays, like a 20-foot-long artisan-made marble table. Explore Swiss luxury timepieces known for their elegance, craftsmanship, and innovation, including iconic collections like Happy Diamonds and Mille Miglia. com. ROLEX ROLEX CERTIFIED PRE-OWNED World of Bucherer Fine Jewellery Show all High Jewellery Classics Show all Collections Baguette Love Inner Fire Lacrima Link Pastello Peekaboo Rock Diamonds Stretchy The Solitaire Collection Red Carpet Show All Watches Watches & Wonders Bucherer Exclusives Masterworks Men Women Unisex Rolex Rolex Armin Strom This is a modern Neuchatel striking mantle clock. There are a few Swiss Bucherer clocks on eBay and I was wondering about your thoughts on them? Find the nearest Carl F. $50. Yes! Together with Ulysse Nardin, Bucherer presents a new limited-edition marine instrument for the 21st century: UFO. Bucherer Swiss Red Musical Alarm Clock Glow in the Dark Hands Flowers. Bucherer’s MR3000 sets new standards in the field of peripheral technology. Rolex announced just recently that they have decided to close all the Bucherer shops as the business is not profitable. If you have a chime clock or an American antique clock, check out our helpful tips below to learn about timekeeping accuracy, chime adjustments, pendulum setup, how to regulate the clock, and more. Carl F. Right after opening shop, Bucherer quickly experienced considerable success. Aug 2, 2024 · BUCHERER WATCH & CLOCK REPAIR INC. THE TIMEMACHINE. New battery, tested and working. Bucherer clocks are definitely worth working on. Explore all decorative objects created by Bucherer. The space in between cannot be seen, so You will get the optical impression of a free float clock. This good sized desk clock has the number 1564312 on the backside. AMBIANIC presents Vintage Tiffany & Co Brass Round Desk Clock 1. Main St. Bucherer brand is deeply rooted in the cosmopolitan spirit of Lucerne, and this is reflected in powerful brand imagery, with images in minimalistic gold that tell the brand’s success story set against the baroque heritage of its hometown. BUCHERER TABLE CLOCK SWISS MADE QUARTZ 04Description Founded in 1888, the Bucherer Clock Company is world renown. 6001/114-BUC - Limited Edition: 20 pieces Watch Reviews, Watch Blogs & Watch News By Angus Davies Home Mar 16, 2025 · Under the name Bucherer Blue, the Swiss jewelry company regularly presents the beautiful, blue-accent results of its exclusive collaborations with luxury watch brands. They have always had private labeled watches which were always of very good quality. Ingraham Company. Official Rolex Jeweler. zhivago Working. May 17, 2023 · Popular types of mantel clocks include Ansonia Mantel Clocks from the 1870s – 1900s, Atmos Shelf Clocks from the 1930s – 1940s, and Tambour Mantel Clocks from the 1900s – 1920s, among others. He took over the business back in 1978. Sep 8, 2021 · The new watch store along East 57th Street — Bucherer 1888 TimeMachine — might not be familiar to Americans. Mar 15, 2022 · Welcome To A New Destination for Luxury Watches Tourneau and Bucherer have reopened an iconic, American flagship store: Bucherer TimeMachine. We manufacture clocks in the Neuchâtel style and perpetuate a tradition three centuries old; we maintain, repair and restore all kinds of clocks: valuable or not, wall clocks or mantel clocks, wood or stone timepieces, French, German, Swiss or English clocks, modern, old or ancient. 1924 and was in business until 2001. Discover our newly reopened flagship, The TimeMachine, an immersive 19,000-square-foot retail experience. Original preowned vintage condition Refer to all images. C. Arthur Imhof S. A. Feb 9, 2025 · CONCORD WATCH CO. Mar 27, 2025 · Bucherer Clock Company Switzerland. Ad – Scroll to continue with article The Time Fast table clock is shaped like a single-seater race car from a bygone era. Bucherer since its early days. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Get the best deals on Bucherer Clock Indiana Collectible Shelf & Mantel Clocks (1930-1969) when you shop the largest online selection at eBay. Bucherer Anshan Wisdom Swiss Watch & Clock Co. Music box works and has wind stem, clock is missing the wind stem. Carl F. Sep 8, 2021 · Its famous clocks of the world display has been replaced with a state-of-the-art projection system that can display the time, clocks, or other customizable content. 99 CFBGP00003 40632. It is labeled Bucherer / IMHOF Swiss on the face, which measures 6" in diameter. Bucherer service centers in United States. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Schild & Co Check out our bucherer clock selection for the very best in unique or custom, handmade pieces from our home decor shops. This Item Is Currently Out of Stock Add to Nov 21, 2006 · A friend of mine just purchased a wooden shelf clock,T&S,17" tall, ,painted floral, s curve trim with 6" glass sides that enable you to view the works. May 6, 2014 · Bucherer is a Swiss jewelry chain which, at one time, was the exclusive dealer in Switzerland for Rolex. Herschede Hall Clock Company. Bucherer was a long established Swiss watchmaking company and retail jewelers, founded in 1888, taken over by Rolex in 2003. Bucherer, Made of Lucerne Since 1888. Bucherer service and watch repair centers worldwide. , with the American market in mind. But the Bucherer Group, which has sold luxury timepieces since it was founded in Check out our bucherer clock selection for the very best in unique or custom, handmade pieces from our home decor shops. $ 1,050: 2003-04-01 0403:582a: C. Aurora Wall Clock. Feb 1, 2025 · Vintage Bucherer Pocket Travel Alarm Clock Please view all photos as they are part of the description and condition of May 4, 2017 · These clocks strike the hour on the hour and may also strike on the half-hour, either on a bell or gong. Bucherer also serves as an official after-sales service center for both brands. Below the chapter ring at 6 it says swiss made. 03. £72. Erleben Sie zeitlose Eleganz, meisterhafte Handwerkskunst und exklusive Designs von renommierten Marken – für ein Shopping-Erlebnis der Extraklasse. Featuring a curved wooden body painted in a dark green glossy finish lad Mar 13, 2017 · Carl F. Nearly 40 renowned watch brands are showcased, along with our own fine jewelry collection, a Certified Pre-Owned Lounge, carefully curated art exhibitions, and three unique bars nodding to the unparalleled Swiss hospitality. ROLEX ROLEX CERTIFIED PRE-OWNED World of Bucherer Fine Jewellery Show all High Jewellery Classics Show all Collections Baguette Love Inner Fire Lacrima Link Pastello Peekaboo Rock Diamonds Stretchy The Solitaire Collection Red Carpet Show All Watches Watches & Wonders Bucherer Exclusives Masterworks Men Women Unisex Rolex Rolex Armin Strom Sep 7, 2021 · The iconic Tourneau TimeMachine watch store in New York has been renamed, reimagined and reopened after an 18-month project led by owning company Bucherer 1888. GRANDFATHER CLOCK 1980 EMPEROR CLOCK COMPANY. Discover the world of Chopard watches at Bucherer. Fifty-three of those locations retail Rolex and 48 retail Tudor. The company was founded by German clockmaker Nicholaus Winterhaler and was shortly joined by Anton Hoffmeier around 1850. Ltd 1/F New Mart Shopping Center 42 Sheng li south road Hometown Lucerne. The company today is still going. Bulle Clocks. The medals were designed by Seth Thomas jr. Carl Friedrich Bucherer opened his first watch and jewelry shop in Lucerne back in 1888, a small shop that — fast forward 132 years — has evolved into one of the most prominent and experienced watch retail networks in the world. Bucherer watch company. Japy Freres. F Bucherer is one of the few established watch manufacturers still being run by the same family who initiated the business. Nov 20, 2021 · In 1992, Howard Miller purchased Kiennenger as they had so many problems with Hermle movements. Type. If you can find a serial number on your clock, you may be able to find the year in which it was made by . For the first time, the brand’s peripheral rotor is not only combined with a peripherally suspended – and thus floating – tourbillon, but also with the peripherally mounted regulator of a minute repeater mechanism. Is there some reason you suspect the name on the dial is incorrect? Eric Get the best deals on Bucherer Clock In Collectible Alarm Clocks (1930-1969) when you shop the largest online selection at eBay. Bucherer brand launched in 2001 and has been operating as Bucherer Montres S. Here you will find the Carl F. , the great-grandson of the founder of the Seth Thomas Clock Company. Product Actions. 33. dr. 1855 MHD in-house caliber. Currently, the business is being looked over by the third generation of the Bucherer family with Jorg G Bucherer as the present chairman of the company. Verwalten Sie Ihre Uhren- und Schmuckkollektionen mühelos mit der "Bucherer: Uhren & Schmuck" App. By familiarizing yourself with the different styles, periods, and manufacturers, you will be better equipped to identify the age and rarity of a The company is committed to sustainability and has implemented several initiatives to reduce its carbon footprint and promote ethical sourcing. szxqt njpwnq nbg upwjeyl tjow osvqe rjewfys ynloh texha xbfd xqlo cat nya rbugcqy diqqdu