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

Remarks:

• Movement is available as Lépine (open face) with different heights: 4.1, 4.7, 5.0 mm
• And as Savonnette (hunter) with different heights: 4.1, 4.7, 5.0 mm
• And also with different bridge designs (see extra pictures)

• Listing ID: 10497
• Manufacturer / Brand: Sonceboz
• Caliber: 99 Savonnette H4.1
• 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, 16
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance with Breguet hairspring.
• Power Reserve: Unknown
• Production Period: Unknown
• Country: Switzerland
• Identification: Listed in the Ebauches SA catalog from 1928.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link: https://watch-movements-archive.com/watch-movement/sonceboz-99-sav-h4-1/