IWC Da Vinci Perpetual Calendar Chronograph IW392103
This is a stainless steel IWC Da Vinci Perpetual Calendar IW392103. It has an alligator leather strap with a stainless steel deployment buckle and scratch-resistant sapphire crystals. It includes an oversized signed screw-down winding crown, screw-down round chronograph push buttons, and there is an exhibition sapphire display crystal case back secured with 6 screws and engraved with “IWC WATCH CO – DA VINCI – PERPETUAL CALENDAR,” hallmarks, and a serial number. The 43mm diameter solid round three-body case, scalloped acorn lugs, and stepped convex bezel, are polished. The dial is gray with applied white gold Arabic numeral hour markers around a perimeter rehaut with a white minute-chronograph second scale and Arabic numerals every five seconds to 60. It has a white gold dauphine sword hour and minute hands and a white gold center sweep second hand. There are four white gold-ringed recessed gray subsidiary dials with white Arabic numerals and markers, and white gold indicator hands, including a day register at 9 o’clock, a combination radial month/60-minute small seconds counter at 6 o’clock, a radial date dial at 3 o’clock, and at the 12 o’clock position is a color moon phase dial with a 60-minute counter and a 4-year counter. It’s water resistant to 30 meters/100 feet, it has a 68-hour power reserve at full winding, and the 15.7mm thick case, dial, and movement is all signed.