12”’ | Hand Wind | Swiss Lever | Small Seconds | Chronograph | Date |

Remarks:

• Chronograph: 60 s, column wheel

• Listing ID: 2756
• Manufacturer / Brand: Oris
• Caliber: 725
• Size in French Lignes: 12''', Height 6.7 mm
• 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...: Date
• Other Functions: Chronograph
• Jewels: 17
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: KIF Trior
• Beats per hour: 18,000
• Balance Type: Unknown
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1970
• Identification: Movement marked ORIS Watch Co. 725. Original data sheet available.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-33#post-4175459
• Country: Switzerland
• Contributor ©: Uhrforum.de member Rainer Nienaber