Bracelet watch Wyler

Spring driven with lever escapement. Incaflex balance wheel, 17 jewels. Manual winding. Caliber FHF 59N.
Metal, elastic bracelet painted black with gold stars. In the bracelet is embedded a watch with square dial. Over the dial a two-part cover. If the dial is covered the object looks like a bracelet, while by pressing the button at 9 o'clock position the lid is open and the watch visible. Thus, the item has a dual function – it can be used as an ornament i.e. bracelet or as a watch.
The watch is fitted with caliber 59N made by Ebauchée Fabrique de Horlogerie Fontainemelon. It is a very thin movement, of the baguette type. The caliber was derived from the model 59. Both have the same frequency of 18,000 vibrations/hour, while a subsequent 59-21 has a frequency of 21,600 vibrations/hour.
The watch has Incaflex device to absorb shocks that was promoted in 1927 by the Swiss company Wyler. It is in fact a balance wheel, within which are fastened two curved, elastic arms, which absorb potential shocks onto the balance.
It is rather difficult to date a watch since this type of basically art déco bracelet watch was made into the fifties of the 20th century. In a magazine from 1946 a very similar model of Wyler watch was advertised.