self-winding Audemars Piguet Calibre 2121 movement with date
41 mm 950 platinum case
Calibre 3126 / 3840 Manufacture selfwinding movement with chronograph
approximately 54 hours of power reserve
black alligator leather strap by santoni with quick-change system
IWC Portugieser Annual Calendar Watch - 44.2 mm Red Gold Case - Silver Dial - Black Alligator Strap - IW503504 heritage self-winding Audemars Piguet Calibre 212144. 2 mm 18K red gold case, 15. 3 mm thick, sapphire back, sapphire crystal with arched edge, antireflective coating on both sides, silver plated dial, caliber 52850 pellaton automatic winding movement with power reserve display, annual calendar with displays for the date, day and month, small hacking seconds at 9 oclock, approximately 7 day of power reserve, black alligator leather strap. Water resistant to 3 bar.