IWC IW502119 Portuguese Perpetual Calendar 18K Rose Gold Black Dial (25510)

25510 IWC 5021 Portuguese Perpetual Calendar, 5021-19, IW502119, 18k rose gold on a strap with an 18k rose gold buckle, automatic IWC caliber 51612 movement, day, date, month, 4 digit year display, 7 day power reserve, moon phases for the northern and southern hemispheres, display back, sapphire crystal, size: 44.2mm, thickness: 15mm, water resistant to 30 meters, Like new with original box and papers, dated August 2008. The watch was fully serviced by IWC in February 2017.

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More about IWC IW502119 Portuguese Perpetual Calendar 18K Rose Gold Black Dial

This is an 18k rose gold IWC Portuguese Perpetual Calendar IW502119. It has an alligator leather strap with an 18k rose gold IWC double deployment buckle, and a scratch resistant sapphire crystal. It has a pull out winding crown and an exhibition sapphire display case back secured with 6 screws, and engraved with a serial number. The 44.2mm diameter solid three-body case, downturned lugs, and stepped bezel are polished/brushed. The dial is black with applied rose gold Arabic numeral hour markers, gold dot indices, and a perimeter gold dot minute/second scale. It has rose gold Dauphine hands, and there is a 4-digit year date aperture window between 7 and 8 o'clock. The perpetual calendar adjusts for short and long months and the 28/29 days of February once every 4 years. There is a double gold moon phase subsidiary dial at 12 o'clock with outside indicators for both the northern and southern hemispheres, and a black recessed small running seconds register is at 9 o'clock with a radial day ring. A recessed black month indicator is at 6 o'clock, and a recessed black date dial is at 3 o'clock with a white 168-hour (7 day) power reserve inner ring. It's water resistant to 30 meters/100 feet, and the 15mm thick case, dial, and movement are all signed.

This IWC Portuguese Perpetual Calendar IW502119 has a mechanical automatic self-winding IWC caliber 51612 movement. It includes the patented Pellaton automatic winding system, and it's constructed with 62 jewels, a self-compensating Breguet flat balance spring, and a Glucydur beryllium alloy balance with a high-precision adjustment cam on the balance arms; it's adjusted to 5 positions. It includes a rotor with an 18k gold medallion, a shock absorber device, and the mechanism oscillates at a frequency of 21,600 vph (3 Hz).

The IWC Portuguese Perpetual Calendar IW502119 with the IWC caliber 51612 movement was produced from 2006 to 2008.