Watch Facts

Quiz: 2025.03.05 Quiz (Moonphases)

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IWC Portugieser Eternal Calendar (2024)

The watch represents a significant advancement in calendar watch technology, establishing itself as the best in the watch world. This model is IWC’s first secular perpetual calendar, designed to accurately keep time until the year 3999 without needing adjustments, even incorporating the Gregorian calendar’s leap year exceptions with a

400-year gear. This gear enables the watch to adhere to all the Gregorian calendar’s rules and exceptions, addressing the intricate rules that usually apply to centurial years.

This watch also features an accurate moon phase display that deviates just one day in 45 million years, setting a new standard in precision. The amazing thing about this movement is that these accuracies are achieved with a minimalistic approach in the gear designs, allowing it to maintain high accuracy while keeping the movement size relatively unchanged.

The watch is encased in a 44.4mm platinum case with a thickness of 15mm, and features sapphire crystal with a display case back and water resistance up to 50m. The layout retains the classic arrangement of calendar functions and moon phases similar to those in Kurt Klaus’ original perpetual calendar design, with all indicators adjustable via the crown. Glass dial with white lacquer base. Visually, the easy telltale sign is the gear visible at 4 o’clock. The automatic movement, Calibre 52460, features a Pellaton winding system

Power reserve is 7 days

Priced at CHF150,000

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Jaeger-LeCoultre Duometer Chronograph Moon (2024)

The case of this remarkable timepiece is available in pink gold or platinum, measuring 42.5mm in diameter and 14.2mm in thickness. It features a sapphire crystal with a display case back and offers a water resistance of up to 50 meters. The watch is powered by the all-new manual winding in-house calibre 391, which incorporates a dual barrel and a 1/6 seconds chronograph with moonphase. With a power reserve of 50 hours, this watch ensures reliable performance.

Priced at EUR 79,000 in pink gold or EUR 97,000 in Platinum.

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Zenith Chronomaster Original Triple Calendar (2024)

Stainless Steel case in 38mm with a thickness of 13mm, sapphire crystal with display case back, water resistance to 50m. Automatic calibre El Primero 3610, integrated high-frequency chronograph with column wheel and horizontal clutch and complete calendar and moonphase.

Chronograph with 1/10th of a second central hand. Power reserve is 60 hrs

Priced at CHF 12,900 leather strap and CHF 13,400 steel bracelet

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AUDEMARS PIGUET CODE 11.59 BY AUDEMARS PIGUET ULTRA-COMPLICATION UNIVERSELLE RD#4 (2023)

Audemars Piguet Code 11.59 Universelle RD4 (2023). 18k white gold case in 42mm with a thickness of 15.5mm, ultra-complication with 23 complications, 40 functions. Openworked dial, sapphire crystal with display caseback, water resistance to 20m. Automatic in house calibre 1000, 90 jewels, 1140 components, calibre size 34.3mm x 8.8mm. Its is a minute repeater, grand / petite sonnerie, flying tourbillon, chronograph flyback and split-seconds, perpetual calendar. Power reserve is 64 hours Priced at CHF 1,600,000  This watch is the Grand Prix winner of the 2023 GPHG

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Hermes Arceau Petite Lune (2023)
•18k white gold case in 38mm (originally designed by Henri d’Origny1978), 70 diamonds total weight of 0.805CT.
•Dial is aventurine on mother-of-pearlwith 5 diamonds.
•Automatic movement Hermes Calibre H1837 by Vaucher
•Power reserve is 42 hours.
•Priced at USD49870
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Piaget Polo Perpetual Calendar Ultra-Thin Obsidian (2023)
•18k white gold in 42mm with a thickness of 8.65mm, bezel set with blue sapphire
•Obsidian dial with moonphase aperture at 6 o’clock; sapphire crystal with display caseback.
•Automatic in house calibre Piaget 1255, micro-rotor.  Paired with blue alligator strap equipped with SingleTouch interchangeable system, additional rubber strap included.
•Power reserve is 42 hours
•Priced at €116,000
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Vacheron Constantin Overseas Moon Phase Retrograde Date (2023)
•Stainless steel case in 41mm with a thickness of 10.5mm.
•Blue lacquered dial with sunburst effect.  Stainless steel matching bracelet with interchangeable system, with additional calf leather and blue rubber strap.
•Automatic 2460 R31L/2 in house calibre, 22k gold automatic rotor.  Geneva Seal certified
•Power reserve is 40 hours
•Boutique Exclusive model
Priced at €48000
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De Bethune DB25 (2022)
  • PERPETUAL CALENDAR 40MM
  • Case material: Grade 5 titanium
  • Name: DB25 Perpetual Calendar
  • Reference: DB25sQPATIS13
  • Functions: Hours, Minutes, Spherical moon phase indication and leap-year indication at 12 o’clock, Perpetual calendar indicating the month at 3 o’clock, the date at 6 o’clock and the day of the week at 9 o’clock
  • Movement: DB2324V2
  • Type: Mechanical self-winding movement
  • Adjustment: Winding, setting the date and the time by means of the crown (3 positions)
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Panerai Luminor Due Luna ref. PAM01179 (2022)
  • Stainless steel case in 38mm.
  • Sunray blue dial with the moonphase display at 3 o’clock, small seconds at 9 o’clock.
  • Automatic movement Panerai caliber P.900/MP.
  • Power reserve is 72 hrs Priced at USD9,300
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Arnold and Son Perpetual Moon 38 Eclipse I (2022)

18k white gold case in 38mm with 10.4 thickness. The watch is set with 90 brilliant cut diamonds on the bezel and lugs. The dial consists of aventurine, blue tinted MOP with hand painted constellations, two ruthenium crystal discs served as the moon – 35 brilliant cut diamonds, 3 pear shaped diamonds, 4 pink sapphires and 8 blue sapphires. Manufuactured calibre A&S1612, astronomical moonphase that is accurate to 122 years. Power reserve is 90 hours Limited to 18 pcs Priced at CHF77,900

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