IWC - Portuguese Minute Repeater Watch IW544906

44 mm platinum case, sapphire-glass back, silver-plated dial, hand-wound calibre 98950 movement with minute repeater for hours, quarters and minutes, small hacking seconds, Glucydur beryllium alloy balance with high-precision adjustment cam on balance arms, Breguet spring, three-quarter bridge, approximately 46 hours of power reserve, black alligator leather strap.