Sinn 857 UTC Automatic 200m Mens Steel Wrist Watch. The factory black dial with luminous batons & arabic numbers with matching hands, date at 4 is signed Sinn UTC. The auto wind movement is working well, running strong, as it should. The steel 42mm screw back case is fully signed on the back, with rotating bezel, MISSING TRIANGLE AT TOP OF BEZEL, only cosmetic, complete with non sinn leather strap. Dont miss this one!