IWC Portugieser Tourbillon Mystere Retrograde Watch - 44.2 mm Platinum Case - Silver Dial - Black Alligator Strap - IW504601 Brown silver-toned dial with “Grande Tapisserie”

silver-toned dial with “Grande Tapisserie” pattern

2 mm stainless steel case

hand-stitched large square scale blue alligator strap

burgundy alligator leather strap by santoni with quick-change system

slate-grey dial

IWC Portugieser Tourbillon Mystere Retrograde Watch - 44.2 mm Platinum Case - Silver Dial - Black Alligator Strap - IW504601 Brown silver-toned dial with “Grande Tapisserie”44. 2 mm platinum case, 15. 3 mm thick, sapphire back, sapphire crystal with arched edge, antireflective coating on both sides, silver plated dial, caliber 51900 pellaton automatic winding movement with power reserve display, retrograde date display, flying minute tourbillon, approximately 7 day of power reserve, black alligator leather strap by Santoni. Water resistant to 3 bar.