IWC, Portugieser Perpetual Calendar Moon Phases, Ref. IW503202

Equipped with the IWC-manufactured automatic movement, the IWC Portugieser Perpetual Calendar Moon Phases Ref. IW503202 ensures remarkable accuracy and a power reserve of up to 7 days. With its timeless appeal and remarkable horological expertise, this timepiece is a testament to the brand’s commitment to luxury watchmaking.

SPECIFICATIONS

Brand: IWC
Model: Portugieser Perpetual Calendar Moon Phases
Reference Number: IW503202
Movement: Automatic
Condition: Mint
Gender: Men’s
Time Period: 2011-2015
Box: No
Papers: No

THE CALIBER

Caliber: 51614
Jewels: 54

THE CASE

Case Material: 18K rose gold
Case Diameter: 44.2 mm
Thickness: 15.3 mm
Waterproof: 100 ft./ 30 m./ 3 ATM
Bezel Material: Fixed polished concave 18K rose gold
Glass: Sapphire crystal
Dial: Black 
Dial Numerals: Polished 18K rose gold applied Arabic numerals and faceted rectangular hour indices, rose gold minute/second bead markers around the outer rim

THE BRACELET / STRAP

Bracelet Material: Brown Leather
Buckle: Deployant
Buckle Material: 18K rose gold

THE FUNCTIONS

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, the 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.

FURTHER READING

 The IWC Portugieser Perpetual Calendar Moon Phases Ref. IW503202 is a remarkable timepiece that exudes elegance and sophistication. Featuring an 18k rose gold case, a brown leather strap, and a black dial, this watch combines luxurious materials with a classic design. The perpetual calendar function allows for precise tracking of dates, months, and leap years, while the moon phase display adds a touch of celestial beauty. With its impeccable craftsmanship and timeless aesthetic, the IWC Portugieser Perpetual Calendar Moon Phases Ref. IW503202 is a true embodiment of refined horology.

A CLOSER LOOK

This IWC Portuguese Perpetual Calendar Double Moon 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 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. 

The moon phase indicator is displayed on the 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 deviate from the moon’s actual progress by a mere 12 seconds per lunar period. The sub-dial is decorated with applied rose gold stars.

In 2010, IWC introduced the Portugieser Perpetual Calendar 5023, which combines IWC’s self-winding 7-day movement with Kurt Klaus’ ingenious perpetual calendar module. The latter was first seen in the 1985 Da Vinci and was adapted to fit the 7-day movement’s larger dimensions. It had a 44.2mm case with sapphire glasses on both the front and back. The ‘Double Moon’ moonphase display was one of its distinguishing features, allowing its owner to read the moonphase in both the southern and northern hemispheres.

The bezel and the lug tops are polished finish; 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
Case, dial, and movement are all signed.

THE SET

This presented timepiece is in fine preowned condition and is delivered with a Twain Time presentation box and is covered by Twain Time 12-month limited warranty.