39.1mm stainless steel case Sapphire crystal Water resistant up to 100 metres (10 atm) Exhibition case back Pull out crown Dial & Hands Bronze dial with applied rose gold plated Roman Numerals & markers Rose gold plated stainless steel hands (hour, minute, seconds & 24-hour) Exhibition window 24-Hour sub dial Bracelet & Buckle Stainless steel and rose gold plated bracelet and folding clasp Movement Automatic: powered by the movement of the wearer Calibre number: 4R39 Additional Functions Hand Winding Power reserve/battery life: 41 hour power reserve