IWC Portugieser Perpetual Calendar Moon Phases 18K Rose Gold
Model: Portugieser Perpetual Calendar Moon Phases
Reference Number: IW503404
Time Period: 2016
Retail / Compare-At Price: $39,800
Our Best Price: $31,850
Case Material: 18K rose gold
Case Diameter: 44.2 mm
Thickness: 15.3 mm
Waterproof: 100 ft./30 m.
Water Resistance: 3 ATM
Material Bezel: Fixed polished 18K rose gold
Glass: Sapphire crystal
Dial: Ardoise grey dial with a fine sunburst finish with matching grey sub-dials with a very fine concentric circular pattern.
Dial Numerals: Polished 18K rose gold applied Arabic numerals and faceted rectangular hour indices, white railway-track minute/second markers around the outer rim
BRACELET / STRAP
Bracelet color: Black
Bracelet Material: Leather
Clasp material: 18K rose gold
Perpetual calendar, moon phase subsidiary dial at 12 o'clock, 7 days power reserve indicator at 3 o'clock, day of the week indicated on the outside perimeter of the sub-dial at the 9 o'clock, date indicated on the outside perimeter of the sub-dial at the 3 o'clock, month indicated at the sub-dial at the 6 o'clock, current year displayed in a full 4 digit format with a window between the 7 & 8 o'clock, hours, minutes, small running seconds hand indicated by a hand at the center of day sub-dial at the 9 o'clock, 168-hour power reserve
Round-shaped polished and brushed case, the bezel and the lug tops are polished finished, the case edges have a fine brushed finish.
18K rose gold applied leaf-shaped hands hours and minutes hands, stick-shaped sub-dial hands
18K rose gold push/pull knurled crown
The moon phase indicator is displayed at sub-dial at the 12 o'clock position. Indicated by a rose gold & black disc which rotates beneath two windows on the dial. The mirror images of the moon as seen from the northern and southern hemispheres & which deviates from the moons actual progress by a mere 12 seconds per lunar period. The sub-dial is decorated with applied rose gold stars.
Introduced in 2015, the 52615 is the latest version of IWC's 7-day power reserve perpetual calendar movement. Its movement notably sports twin barrels and a solid gold rotor.
This IWC Portuguese Perpetual Calendar Double Moon IW503401 has a mechanical automatic self-winding IWC caliber 52615 movement. It has two barrels (necessary to provide a 7-day power reserve running time and to drive 9 functions and dials), and a bidirectional Pellaton winding mechanism with ceramic pawls. It's constructed with 54 jewels, and a Glucydur beryllium alloy index-less balance with high-precision adjustment screws on the balance rim. It has a shock absorber device, a self-compensating Breguet flat balance spring, and a small hacking seconds mechanism for precision time setting. There is an 18k rose gold rotor, and the movement oscillates at a frequency of 28,800 Vph (4Hz). The IWC Portuguese Perpetual Calendar Double Moon IW503401 debuted in January, 2015. Its moon phase calendar will only require a correction of 1 day after 577.5 years.
Case, dial, and movement are all signed.
Incomplete (no box, with papers)