17 1/2”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Savonnette = hunter movement
• There is also a Havila 17 1/2”’ Lépine (open face) version of this movement
• The movement is marked with 15 jewels, but has 16 -> presumably the center jewel of the minute wheel was added later

• Listing ID: 2139
• Manufacturer / Brand: Havila
• Caliber: 17 1/2''' Savonnette
• Size in French Lignes: 17 1/2''', Height 3.6 mm
• Size range mm largest diameter: 31 - 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, 16
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with flat hairspring
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1930
• Country: Switzerland
• Identification: Not listed in any source known to me. Movement marked Havila Watch Co.
• 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-41#post-5425239
• External Link 2: https://watch-movements.eu/blog/en/2020/03/05/havila-a-nearly-unknown-movement-manufacturer/