5 3/4 x 8 1/2”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• The Venus 55 (without O.) has angular edges, the 55 O. has round edges

• Listing ID: 1685
• Manufacturer / Brand: Venus / Herag
• Caliber: Venus 55 O. = Herag 570 H1
• Size in French Lignes: 5 3/4 x 8 1/2'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Form
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 16
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 40 hours
• Production Period: Unknown, probably around 1936
• Identification: Marked with the Venus logo and 55 on the dial side. Listed in the Classification Horlogère of 1936. Dial of the corresponding watch inscribed with the Herag brand, ratchet wheel with CAL 570 H1.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-43#post-5603787
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)