2024 Pre-Owned Sinn U50 SI-507
Excellent Condition barely worn, Full Kit Box Papers and strap tool
Rubber strap cut to fit up to 7 3/4, will adjust to fit smaller wrist too  
Clasp still covered with plastic.
Mimo's take
Sinn has the Tool Watch Look that's missing from lot of New Modern Dive watches.
 Watch Case 41mm
Thickness 11.2mm
 Lugs 20
 Lug to lug 47mm
 Weight head only 74gr
 Water resistance 500 meters
 Case back Solid
 Case finish Matte
 Case metal Submarine steel
 Dial color Black
 Front crystal Sapphire
 Tegimented Bezel only
 Calibre: SW300-1
 Movement: Automatic mechanical
 Strap or bracelet: Strap
 Manufacturer's limited warranty: 2 years (Balance from March 2024)
msrp when New $2700