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Keep your eyes peeled for the newer and bolder of the U series- The Ultimate U.
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The Sinn signature U series like you’ve never seen before. Bigger, bolder, un-missable - The Hour Glass is honored to present the world premiere of the largest ever watch made by Sinn, created exclusively for The Hour Glass. Aptly named the “Ultimate U”, its grander size is encased in an imposing un-missable 47mm case, crafted from the same German U-boat submarine steel from which it derives its name. Following hot on the heels of two prior limited-editions for The Hour Glass – the “U Black” and the “Tempus U1”, the U Series legacy continues with the “Ultimate U”. Limited to only 200 pieces in total worldwide production.
A Wartime Odyssey
The limited-edition “Ultimate U” is shrouded with a rich and intriguing history.
The first German U-1 submarine was launched and commissioned into the Imperial Navy during World War I. A couple of decades later during World War II witnessed the introduction of the Monsun U-boats, a type IXD2 U-boat that were larger and more arresting than their predecessors. At more than 500 tons heavier and almost 10 meters longer than the other U-boats, these long range Monsun U-boats operated very successfully in the Indian Ocean and South African waters during World War II.
Singapore’s pivotal role in U-Boat history
A little known fact was Singapore’s role in the developmental history of the much feared German U-boats. One of the most decorated Monsun U-boats, the U-181, operated from Singapore as its key base and fought and ended its last days on the island of Singapore during World War II.
The “Ultimate U”, with its large casing diameter of 47mm, is a befitting creation, inspired by the original Monsun U-boat’s imposing size.
The ‘U Series’ Legacy ContinuesThe background and exceptionally sturdy case of the German submarine steel, unparalleled in its remarkable resistance to seawater and anti-magnetic quality, sets the inspiration and creation of the U Series. Exclusively for Sinn, the steel supplier of Howaldtswerke-Deutsche Werft and Nordseewerke Emden GmbH shipyards are supplying the watchmaker with smaller amounts of exactly the same steel of which the world’s most modern non-nuclear submarines are made – the new submarine class 212 of the German Navy. A technical marvel of unparalleled reliability, it can be tegimented especially well. The rotating bezel’s minute scale for dive time reading is milled directly into the steel to assure safety, legibility and accuracy. Tested by Germanischer Lloyd, the global authority in pressure testing of submarines, the Sinn U Series is the ultimate indispensable equipment for professionals and sports divers.
With key distinction in its new oversized case, with a larger crown, the “Ultimate U” has a special dial embossed with the outline of a submarine. Its date marker on the dial presents the 30th day in each month in white, as a distinction to The Hour Glass’ 30th anniversary this year. Its caseback is engraved with “The Hour Glass Limited 200”. Each watch is also accompanied by a certificate that is personally signed-off by Mr Lothar Schmidt, CEO of Sinn.
(Photos are courtesy of Mr Su Jiaxian)
The Sinn “Ultimate U” is exclusively available at The Hour Glass and retails at
S$7,300.
Please click here for Ultimate U's technical details
Fans of classic cars, this entry will "pop" your eyes. The month of August was yet another exciting month for Sinn with the Hamburg-Berlin Rallye - even more so in fact, as they got right into the heart of action - by racing in it!
One of the drivers is a man who appreciates classic design and loves masterpieces of mechanical engineering: Lothar Schmidt, owner of SINN Spezialuhren in Frankfurt am Main.
Dashboard clock 4.917 
