Sinn U2 U-Boot 1020
This German built Timepiece takes all the familiar advantages of the SINN diving watches to an entirely new level. Reliable at depths up to 2,000 meters and equipped with a second time zone. Functions reliably at temperatures between -45 and +80 °C.
As you probably already know the case is made from a batch of German submarine steel. Here is an excerpt from the US distributor:
"The steel was by procured by Sinn from a steel supplier to Emden GmbH, one of Germany’s North Sea shipbuilding yards who construct submarines from the very same steel. This submarine steel is not only extraordinarily sea water resistant (PRE value up to 38), it possesses also the highest anti-magnetic quality.
Because of the special steel used from the submarine steel manufacturer, and the use of Sinn's Tegiment technology, this bezel can be hardened up to 1500 Vickers instead of the usual 220 Vickers. Further, the entire case resists the effects of exposure to salt water and salt water environments."
The window for the viewable CuSO4 capsule (there are two but only one is visible) is very discreet and located at the base of the 6 o'clock marker. It's color is slightly blue as the timepiece ages and will appear deep blue should moisture enter the case.
Black rubber strap with push-button butterfly clasp, unidirectional rotating diver bezel, black dial, automatic, date.
Comes with Box and Papers
Width: 44 mm / Height: 50 mm / Thickness: 16.2 mm / Lug Width: 22 mm