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

Remarks:

• Largely identical to the OM 150, the movements differ in height (OM 125: 4.05 mm, OM 150: 3.10 mm)

• Listing ID: 659
• Manufacturer / Brand: O. Maire
• Caliber: OM 125
• 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
• 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: Unknown
• Production Period: Unknown, probably around 1950
• Country: Switzerland
• Identification: Dial side marked OM 125. Listed in the Flume K1 catalog from 1952
• Contributor ©: WatchUSeek.com forum member balaton
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-56#post-7799843