18 1/2”’ | Hand Wind | Cylinder | Small Seconds |

Remarks:

• Lépine = Open face
• Here, the registration date was added to the caliber designation Model No. 1, as Froidevaux had already registered a (different) Model No. 1 on 22.01.1901. And further models No. 1s on 07.02.1905, 14.04.1914 and 28.03.1916. This was absolutely unusual, as manufacturers did not normally assign the same model number more than once.
• As model No. 6 from 20.11.1902 also with Swiss lever escapement

• Listing ID: 372
• Manufacturer / Brand: Froidevaux
• Caliber: Model No. 1 15.03.1901 Lépine
• Size in French Lignes: 18 1/2'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown with pin/pusher
• Seconds Hand: Small seconds
• Escapement: Cylinder
• Date, Day, Month...: None
• Jewels: 10
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Holes in setting lever spring or rocking bar: 0 = no setting lever spring and no rocking bar
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Brass
• Power Reserve: Unknown
• Production Period: Around 1901
• Country: Switzerland
• Identification: Movement marked with DÉPOSÉ No. 7851. Registered by Froidevaux under this number in the Swiss Official Gazette of Commerce on 15.03.1901 as model No. 1. Model No. 1 is not an official caliber designation, but was used to register the design.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-59#post-8302736
• External Link 2: https://watch-movements.eu/blog/en/2023/07/01/froidevaux-from-porrentruy-in-switzerland/