Leonidas Triple Calendar Moonphase (c. 1940's)

Sale price Price $2,300.00 Regular price Unit price  per 

Up for sale is this stunning vintage Leonidas from the 1940s. This stunning timepiece boasts a triple-date moon phase calendar display with an exquisite original dial, housed in an elegant stainless steel horn-lug case.

The case has a beautifully thin and rounded profile, measuring 35.5mm in diameter and seems to be unpolished, adding to its vintage charm.

This watch has been recently serviced, ensuring that it is running strong, keeping excellent time, and that all four calendar functions are functioning as they should. This rare and sought-after model is equipped with four quick-set buttons, one for each calendar function, making it easy to quickly set the watch.

This watch was produced in the 1940s, a few years before the Leonidas-Heuer merger. Its remarkable condition throughout and beautiful design make it a highly sought-after and coveted timepiece for watch enthusiasts and collectors alike. 

PLEASE NOTE: Do not use any of the calendar quick-set functions when the watch is set between 10am and 2pm. When the watch is in this position, engaging the quickset buttons can damage the movement. 


Founded in 1841, Leonidas gained a reputation for precision and quality. By mid-century, Leonidas remained a leading producer of chronographs and stopwatches, cementing its position as a leading watchmaker in the global market. The 1964 merger with Heuer would later bring further success and recognition to the Leonidas brand. But as a result of the quartz crisis in the 1970's, Leonidas did not fair well. With the popularization of quartz stopwatches in the 1980s, followed by TAG's acquisition of Heuer in 1985, the Leonidas brand was eventually retired.

Despite sharing a similar fate with the many other Swiss watch brands flattened by industry disruption of this era, enthusiasts are increasingly recognizing Leonidas an important brand worth seeking out and collecting. 





Reference number



Triple date moon-phase manual wind caliber ETA 1100 (made especially for Leonidas

Case material

Stainless Steel

Bracelet material

Leather (blue/grey)

Year of production



Worn with little signs of wear

Scope of delivery

Watch only


Men's watch/Unisex

Number of jewels


Case diameter

35.5 mm



Lug Width


Water resistance

Not water resistant





Dial numerals

Arabic Numerals


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