Sinn 157

One of my first watches, similar to your Sinn. Here is my Sinn 157 Ti. Huge fan of the Lemania 5100.

Sinn 157 titanium Fortis Cosmonauts Chrono with bi-directional countdown bezel. Fortis Cosmonauts Chrono with Divers Bezel

2,600  / 3,340 $ Model: 157 GSG9 Reference: 157 Condition: 98 % Case: titanium Diameter: 41 mm Strap: titanium Dial: black With papers: yes With box: yes Warranty: yes Year: 2012 Movement: automatic Comment: Very nice condition, complte withe box and pap