17”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Swan-neck fine regulator
• The movement shown is missing the setting lever screw
• See also Thommen Model No. 3000^1

• Listing ID: 5599
• Manufacturer / Brand: Thommen
• Caliber: Model No. 3000B
• Size in French Lignes: 17'''
• Size range mm largest diameter: 31 - 40 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: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1897
• Identification: Movement marked with CYRUS, a trademark of Thommen registered in 1897. Movement registered by Thommen in the Swiss Official Gazette of Commerce on 03.09.1897 as model No. 3000B. Model No. 3000B is not an official caliber designation, but was used to register the design.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-64#post-9009898
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)