11 1/2”’ | Manual Wind | Swiss Lever | Indirect Sweeping Seconds |

Remarks:

• The OM 115 is very similar to the OM 116, but has a different height (5.0 mm vs. 4.05 mm)

 

• Listing ID: 154
• Manufacturer / Brand: O. Maire
• Caliber: 115
• Size: 11 1/2'''
• Shape: Round
• Winding: Manual (Crown)
• Hand Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: 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
• Identification: Listed in Flume K1 in the 1952 part
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-60#post-8567699
• Country: Switzerland
• Contributor ©: Uhrforum.de member buchenhain