12 1/2”’ | Hand Wind | Swiss Lever | Small Seconds | Chronograph |

Remarks:

• Column-wheel chronograph: central chronograph seconds, 30 min counter at 12 H
• Rocking bar winding
• Click on the dial side

• Listing ID: 6931
• Manufacturer / Brand: Venus
• Caliber: 170
• Size in French Lignes: 12 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
• Other Functions: Chronograph
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 40 hours
• Production Period: Unknown, probably around 1946
• Identification: Balance cock and dial side marked with Venus logo and 170. Listed in the Swartchild catalog from 1946.
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)