Beautiful self-winding watch from 1930 - ROLLS by LEON HATOT.
Self-winding movement is manufactured by Blancpain under Leon Hatot Patent. Rare watch, it's described in the book «The Self-Winding Watch» by Jean Claude Sabrier (p. 261).
Size is 17x32 mm, weight is 20.4 grams.
Although now the size is closer to ladies watches, it was designed and selling as a gentlemen watch.
Condition is very good.
The solid 18k gold case with "fausses cotes"decoration is in excellent condition, with minor wear. The dial has some marks, perfectly acceptable for Art Deco period watches, not really visible in real life. Please note, that watch is much larger at photo, than in reality.
Movement is in good working condition.
Thick rock crystal doesn't have any noticeable wear.
This Rolls Ato watch along with Rolex in late 1920s it was first automatic wristwatches. The lady version of this watch, issued in 1930 was the world first lady automatic watch.
The advertising of 1930s pointing to lack of winding crown, compared the Rolls watches to the sundials.
Leon Hatot was genius watchmaker. Starting as jeweller, he opened store in Besancon, French watch capital. Soon he relocated to Paris where cooperated all the top Parisian firms, including Van Cleef, Boucheron and Mauboussin and focused at watches.
Well known his experiments with electric clocks under ATO name. These electric clock made from various materials obtained golden medal on Parisian world fair 1925, in the same year he got a Legion of Honour order. He invented first clock, controlled by radio and was one of the founders of French chronometric society
For all his innovative activity he got nickname "Artist-Scientist".
He got a huge order from French government, but in 1939 France was occupied by German troops. Leon Hatot, driven by patriotic senses, closed his factory and stopped production. After WWII the Mr. Hatot was unable to restore company, he died in 1953.
In 1999 Swatch group remembered "Artists-Scientist" legacy and now this brand is in the pool of luxury brands of this concern (the league of Breguet and Blancpain).
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