18 1/2”’ | Hand Wind | Cylinder | Small Seconds |

Remarks:

• The CAP mark registered by the Union Horlogère in 1910 is also stamped on some, but not all, of these movements.
• The Swiss cross and the number 13537 can be found on the dial side, referring to the Swiss patent CH13537, which was granted to Simon, Burger & Gressot in 1897. It describes a device for positioning the balance cock relative to the cylinder wheel. Simon, Burger & Gressot may also have built the movement for the UH.

• Listing ID: 12412
• Manufacturer / Brand: Union Horlogère
• Caliber: Cap
• Size in French Lignes: 18 1/2'''
• 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: 10
• 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
• Country: Switzerland
• Identification: Illustrated in the Flume main catalog of 1912.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link 2: https://watch-movements.eu/blog/en/2018/05/27/early-watch-movements-of-union-horlogere-alpina/