The Serie 8 U1S-8B embodies Unimatic's minimalist ethos, combining a functional tool watch with a simplistic design that only emphasizes its usefulness. A black dial set in a brushed 316 stainless steel case is set with cream indices and gold accents on the minute track. The hands and indices are coated with Super-LumiNova C1 for easy legibility day or night. A unidirectional rotating bezel and water resistance down to 300m make the U1S-8B a capable diver's watch. The automatic caliber Sellita SW200-1b movement features a hacking seconds hand and a 41-hour power reserve. A black rubber and NATO seatbelt strap are included, along with a Unimatic Tough case that can hold two watches.