Wristwatches
45.5 mm black ceramic case with helium escape valve, transparent back, screw-in crown, unidirectional rotating...
45.5 mm black ceramic case with helium escape valve, unidirectional rotating bezel with an OMEGA...
39.5 mm black ceramic case with helium escape valve, transparent back, unidirectional rotating bezel with...
38 mm stainless steel case, transparent back, domed scratch-resistant sapphire crystal anti-reflective treatment on both...
34 mm stainless steel case, transparent back, domed scratch-resistant sapphire crystal anti-reflective treatment on both...