|Diameter:||28.00 mm (12.5 ligne)|
|Complications:||2-Button, 8-Column Chronograph, Chronograph, Column Wheel Chronograph|
|Hands:||30 Minute Chronograph Hand at 12:00, 45 Minute Chronograph Hand at 12:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Small Seconds Hand at 6:00|
|Distinguishing Technical Characteristics|
Clockwise Balance Cock
|Production: 1942 – 1960|
Venus Cal. 170 is a hand-winding column wheel chronograph movement with distinctive 6-12 subdial arrangement. The 12:00 register includes 30 or 45 minute chronograph counter. It is the only Venus movement with eight columns rather than seven.
Cal. 170 was produced from about 1942 until about 1960.
Although often noted as measuring 28.2 mm in diameter, the official Venus technical documentation lists it at 28.00 mm by 6.00 mm.Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.