The collaboration between Zenith and Hodinkee gives us the Zenith Chronomaster Original Triple Calendar For Hodinkee
The moon phase or lunar phase is the shape of the sunlit portion of the Moon when you look at it from Earth. These phases change cyclically as the Moon orbits the Earth, according to the changing positions of the Moon and Sun relative to the Earth.
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The Moon’s rotation is tidally locked by the Earth’s gravity, therefore the same lunar surface always faces Earth. This face is variously sunlit depending on the position of the Moon in its orbit. There are four principal lunar phases: new moon (0% sunlit), first quarter, full moon (100% sunlit), and third quarter (also known as last quarter).
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Timing of the Moon’s phases shifts
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The average calendar month, which is 1⁄12 of a tropical year, is about 30.44 days, while the Moon’s phase (synodic) cycle repeats on average every 29.53 days. Therefore, the timing of the Moon’s phases shifts by an average of almost one day for each successive month. (Lunar year=354 days.)
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The approximate moon phase can be calculated for any date by calculating the number of days since a known new moon (such as January 1, 1900 or August 11, 1999) and reducing this modulo 29.530588853 (the length of a synodic month). Can you imagine how watch makers manage to create a complication like this?
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Watches with a moon phase
A huge tool watch for sailors is the Omega Seamaster Regatta 37th America’s Cup, a quartz with more than two hands full of functions
The Breitling Navitimer B19 Chronograph 43 Perpetual Calendar 140th Anniversary is a variant of one of the top tier aviation watches
This Breitling Premier B19 Datora 42 140th Anniversary is part of a trilogy from the Swiss brand to celebrate they are 140 years old
The famous Swiss brand reveals a trilogy, this Breitling Super Chronomat B19 44 Perpetual Calendar 140th Anniversary is one of them
The Arnold & Son Perpetual Moon 38 Gold Aventurine & Grey have shrunk a little bit compared to last year’s Perptual Moon editions
The IWC Portofino Automatic Moon Phase 37 Year of the Snake is quite on time when it comes to the Lunar New Year start next year
The triple calendar is now available in gold with the Blancpain Fifty Fathoms Bathyscaphe Quantième Complet Full Gold
Another collaboration from Hodinkee, this time leading to the TAG Heuer Carrera Chronograph Seafarer × Hodinkee to read tides
Run to the stores as the Omega x Swatch Bioceramic Moonswatch Mission to the Super Blue Moonphase is only for sale shortly