Rolex Steel Datejust 36 Watch - Diamond Bezel - Black Index Dial - Oyster Bracelet - 126284RBR bkio 128348RBR It has a 55-hour power

It has a 55-hour power reserve

It is named after the Brazilian racing driver Felipe Massa

matt dark brown alligator strap with Nautilus fold-over buckle

solid back

prong buckle

Rolex Steel Datejust 36 Watch - Diamond Bezel - Black Index Dial - Oyster Bracelet - 126284RBR bkio 128348RBR It has a 55-hour power36mm Oystersteel case, screw down steel back, screw down crown with twinlock double waterproofness system, diamond bezel, scratch resistant sapphire crystal with cyclops lens over the date, black dial, index hour markers, Rolex calibre 3235 perpetual self winding movement with center hour, minute and seconds hands, instantaneous date at 3 o'clock with rapid setting, and stop seconds for precise time setting, approximately 70 hours of power reserve,