Sinn 757 UTC Watch Review - Why Did Sinn Discontinue This?
While the Sinn 757 UTC is referred to as "The Duochronograph with captive bezel" (how German is that?) it is intended to be used by pilots. Watch collectors typically envision a WW2 flieger when thinking of a pilot watch, but the 757 UTC is filled with Sinn's tech to be useful...