DOXA SUB 4000T Professional Saphire Bezel

 

Polished, satin-finish stainless steel 46 mm,

Sapphire crystal unidirectional rotating bezel Scratchproof, 

anti-reflective sapphire crystal 

screw-down back 

Helium valve at 9 o'clock 

Water-resistant to 1,220 m (4,000 ft)