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

Remarks:

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

• Listing ID: 10523
• 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
• Country: Switzerland
• Identification: Dial side marked with Venus logo and 55. Watch dial marked with Hera, bridge side marked with 570 H1. Listed as Venus 55 O. in the Classification Horlogère of 1936.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• 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