IWC Portugieser Annual Calendar Watch - 44.2 mm Stainless Steel Case - Silver Dial - Black Alligator Strap - IW503501 royal-oak-concept approximately 168 hours of power

approximately 168 hours of power reserve

titanium bracelet with polished 950 platinum links

grey rubber strap with textile decoration

light silver-toned dial with guilloche decorative pattern

yellow gold hands

IWC Portugieser Annual Calendar Watch - 44.2 mm Stainless Steel Case - Silver Dial - Black Alligator Strap - IW503501 royal-oak-concept approximately 168 hours of power44. 2 mm stainless steel 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.