13”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Dial side marked with Swiss patent number 51482. This patent was granted to FHF in 1910
• Screwed-in jewel setting (Chaton) for center wheel

• Listing ID: 17606
• Manufacturer / Brand: FHF
• Caliber: Model No. 341
• Size in French Lignes: 13'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 16
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Probably around 1912
• Country: Switzerland
• Identification: Registered by FHF on 23.09.1912 in the Swiss Official Gazette of Commerce as model No. 341. Model No. 341 is not an official caliber designation, but was used to register the design.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)