Partly made from recycled materials the Casio G-Shock G-5600SRF Surfrider Foundation looks like it has already been used for years
Perpetual calendar
A perpetual calendar is a calendar mechanism that correctly displays the date on the watch ‘perpetually’, taking into account the different lengths of the months as well as leap days and sometimes leap years.
Watches with a perpetual calendar
The Patek Philippe In-line Perpetual Calendar Ref. 5236P-010 breathes history, with its classic case, classic dial color and Quantième Lunaire
The Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar is part of the refreshment this super flat collection recently got
Patek Philippe Retrograde Perpetual Calendar Rare Handcrafts Ref. 5160/500R
The Patek Philippe Retrograde Perpetual Calendar Rare Handcrafts Ref. 5160/500R is part of the brand’s Grand Complications line
Wearing the Jaeger-LeCoultre Duometre Heliotourbillon Perpetual offers a permanent view on the spinning top effect of the tourbillon
The new IWC Portugieser Perpetual Calendar 44 has had a serious make-over with a new case and double box-glass, plus new dials
A. Lange & Sohne Datograph Perpetual Tourbillon Honeygold Lumen
The A. Lange & Sohne Datograph Perpetual Tourbillon Honeygold Lumen is a limited edition to mark 25 years of the Datograph
The IWC Portugieser Eternal Calendar is doing things beyond imagination with a 400-year gear and one moon phase deviation in 45-million years
The Bovet Recital 28 Prowess 1 is a technical masterpiece that resolves the problem of daylight saving time (DST) in the world’s time zones
The Parmigiani Fleurier Tonda PF Hijri Calendar is the horological expression of the Islamic or Muslim calendar, now available in stainless steel