Perpetual Calendar | 43031 perpetual-calendar One of these alternatives can

One of these alternatives can be found in jumping hour watches

on the right hand side

The case has a two-part interior lined in matching leather and soft Alcantara for both watches on bracelets and straps

you can read our Collector's Guide on the model

black Voutilainen alligator strap

Perpetual Calendar | 43031 perpetual-calendar One of these alternatives canFirst launched in 1983, the Vacheron Constantin ref. 43031 was one of the pieces which helped renew the interest in complicated watchmaking, following the decimation caused by the Quartz Crisis. Alongside similar pieces from Audemars Piguet and Patek Philippe, it is one of the few ultra thin, automatic perpetual calendars introduced during this period. Reviving the Perpetual Calendar The perpetual calendar has always been one of the most classic