Prices of this very VERY RARE watch reach over US$ 8,000!! But you’ve got a great unreal offer here!


One of the rarest vintage watches out there:

The Perpetual Calendar Leonidas !

Leonidas is considered the early founding fathers of Heuer (even before Tag Heuer evolved); so technically speaking, you're looking at the grandfather of today's Tag Heuer (of Switzerland).

The watch has been well preserved by a single owner before it ended up in my hands a few years ago, and I've been loving every aspect of this unique watch ever since !

Functions include: date (hand), hour, minute and second hands, month and day display windows, as well as day/night display curvy window (at bottom). Time (minutes/hours) is controlled by the main crown. Other mentioned functions are controlled by 4 side pushers (2 on each side; left and right) of the case.

The case is most likely gold-plated (~18 K).

All functions are working fine.

Worldwide shipping.


One should acknowledge and admire the remarkable mechanical complexities inherent in the array of features presented on this exquisite watch, such as the moon phase, day/date, and synchronized calendar functions. In today's context, it's easy to overlook these aspects, but when you consider the historical significance of this timepiece, you'll be amazed by its rarity.