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

Remarks:

• Escapement wheel under a dedicated bridge
• Wheel train bridge marked with METODA, a trademark of Nouvelle Tavannes

• Listing ID: 5579
• Manufacturer / Brand: Nouvelle Tavannes
• Caliber: Model No. 4
• Size in French Lignes: 18'''
• Size range mm largest diameter: > 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: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1905
• Country: Switzerland
• Identification: Registered by Nouvelle Tavannes in the Swiss Official Gazette of Commerce on 09.09.1905 as model No. 4. Model No. 4 is not an official caliber designation, but was used to register the design. The registration number 12434 is marked on the dial side.
• 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-64#post-8988547