18 1/2”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Sav. = Savonnette = hunter movement
• The movement is probably also available in other heights

• Listing ID: 19944
• Manufacturer / Brand: ARSA
• Caliber: ARSA Model No. 9 Sav. H 4,7 mm
• Size in French Lignes: 18 1/2'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, possibly from around 1925
• Country: Switzerland
• Identification: Lépine (open face) variant registered by A. Reymond SA (ARSA) on 17.12.1925 in the Swiss Official Gazette of Commerce as model no. 9. Model No. 9 is not an official caliber designation, but was used to register the design. The form of the setting lever parts was also registered in 1925.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)