18”’ | Hand Wind | Cylinder | Small Seconds |

Remarks:

• Rocking bar winding
• Click on dial side

• Listing ID: 2854
• Manufacturer / Brand: Montilier / Union Horlogère
• Caliber: Union Horlogère Roland = Montilier Model No. 31
• Size in French Lignes: 18'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown with pin/pusher
• Seconds Hand: Small seconds
• Escapement: Cylinder
• Date, Day, Month...: None
• Jewels: 6
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Brass
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1912
• Identification: Illustrated in the Flume main catalog of 1912. Three-quarter plate marked with U. H. Registered by Montilier on 10.10.1908 in the Swiss Official Gazette of Commerce as model No. 31. Model No. 31 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-32#post-4095771
• External Link 2: https://watch-movements.eu/blog/en/2018/05/27/early-watch-movements-of-union-horlogere-alpina/
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)