Guides & articles
Written by Catalin Alexandru · Last checked: 2026-10-17
How to read a moon phase windowWhat the two humps, the two moons and each disc position mean, why one click equals one day, and why the moon looks mirrored in the southern hemisphere.Why your MoonSwatch chrono hand isn't at zero (and how to fix it)Why MoonSwatch chrono hands reset to the wrong spot after a knock or battery change, and the crown-and-pusher fix for planet and Moonphase models.Moon phase accuracy: why watches drift and how often to resetA 59-tooth moon phase drifts a day every ~2.6 years, a 135-tooth one every ~122 years. What really throws a moon off, and when to reset it.
Setup guides by watch
MoonSwatch
- MoonSwatch Mission to Mercury
- MoonSwatch Mission to the Sun
- MoonSwatch Mission to Venus
- MoonSwatch Mission on Earth
- MoonSwatch Mission to the Moon
- MoonSwatch Mission to Mars
- MoonSwatch Mission to Jupiter
- MoonSwatch Mission to Saturn
- MoonSwatch Mission to Uranus
- MoonSwatch Mission to Neptune
- MoonSwatch Mission to Pluto
- MoonSwatch Moonshine Gold editions (Mission to the Moon / Sun / Mars…)
- MoonSwatch Mission to the Moonphase — New Moon
- MoonSwatch Mission to the Moonphase — Full Moon
- MoonSwatch Mission to the Pink Moonphase
- MoonSwatch Mission to the Super Blue Moonphase
- MoonSwatch Mission to Earthphase
- MoonSwatch Mission to Earthphase — Moonshine Gold editions (Sturgeon, Harvest, Hunter's, Beaver, Cold Moon…)
Omega Speedmaster
- Omega Speedmaster Moonwatch Professional — steel, Hesalite
- Omega Speedmaster Moonwatch Professional — sapphire sandwich
- Omega Speedmaster Moonwatch Professional — Canopus Gold
- Omega Speedmaster Moonwatch Professional — Moonshine Gold
- Omega Speedmaster Moonwatch Professional — Sedna Gold
- Omega Speedmaster "Silver Snoopy Award" 50th Anniversary
- Omega Speedmaster Professional "Silver Snoopy Award" (2015, Apollo 13 45th)
- Omega Speedmaster Professional Snoopy "Eyes on the Stars" (2003)
- Omega Speedmaster Apollo 11 50th Anniversary (steel, Moonshine Gold bezel)
- Omega Speedmaster Moonwatch Professional (pre-2021, Hesalite)
- Omega Speedmaster Moonwatch Professional sapphire (pre-2021)
- Speedmaster "First Omega in Space"
- Omega Apollo editions with calibre 1861 (e.g. Apollo 17 45th, Apollo 15 40th)
- Omega Speedmaster Moonwatch Calibre 321
- Omega Speedmaster Dark Side of the Moon
- Omega Speedmaster '57 Co-Axial Master Chronometer
- Omega Speedmaster Moonphase Master Chronometer
- Omega Speedmaster Professional Moonphase (legacy, hand-wound)
Swatch
Other brands
- Citizen Eco-Drive Calendrier Moonphase
- Tissot quartz with moon phase
- Longines Master Collection Moonphase (calibre L899)
- Jaeger-LeCoultre Master Ultra Thin Moon (calibre 925)
- Frederique Constant Classics Heart Beat Moonphase Date (FC-335)
- Frederique Constant Slimline Moonphase Manufacture (calibre FC-705 family)
- Seiko Presage with calibre 6R24 (day, date, power reserve)
- Fossil "sun & moon" / moon-window watches
Setup guides by complication
- How to set up a moon phase with the crown
- How to set up a moon phase with a corrector button
- How to set up a moon phase with a pusher
- How to reset chronograph hands to zero
- How to set up the date on a watch
- How to set up the day and date on a watch
- How to set up a GMT or 24-hour hand
- How to set the time on a watch
- How to start a stopped mechanical watch
Ready to set your watch?Open the setup guide →