10 1/2”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Cam disk regulator
• Movement available with slightly different clicks on the ratchet wheel

• Listing ID: 17413
• Manufacturer / Brand: Zenith
• Caliber: 10 1/2''' N.S.I.
• Size in French Lignes: 10 1/2'''
• 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: 15, 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Holes in setting lever spring or rocking bar: 2
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: 1926 - 1937
• Country: Switzerland
• Identification: Movement marked with ZENITH. Listed in the Classification Horlgère from 1936 and in the Zenith book from Manfred Rössler. Design already registered in the Swiss Official Gazette of Commerce in 1904.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)