interchangeable full back and sapphire crystal case back
Caliber # 4400 AS w/ 21 Jewels
At its core beats the 4131 manufacture Rolex perpetual movement—a mechanical chronograph propelled by self-winding technology
black dial with indicators in Super-LumiNova
featuring a 40mm case diameter
Rolex Steel and Everose Gold Datejust 31 Watch - 46 Diamond Bezel - Rose Roman Dial - Oyster Bracelet - 278381RBR roro 7119G010 interchangeable full back and sapphire31mm Everose Rolesor case comprised of Oystersteel and 18K Everose gold, screw down back, screw down crown with twinlock double waterproofness system, 18K Everose gold bezel set with 46 diamonds, scratch resistant sapphire crystal with cyclops lens over the date, rose dial, Roman numerals, Rolex calibre 2236 perpetual self winding movement with date at 3 o'clock, approximately 55 hours of power reserve, Eversose Rolesor Oyster bracelet made from a