10 1/2”’ | Hand Wind | Cylinder | Small Seconds |

Remarks:

• Rocking bar winding
• Click on dial side
• Part of a movement family with different bridge shapes: AM 453, AM 454, AM 456

• Listing ID: 2769
• Manufacturer / Brand: AM
• Caliber: 456
• Size in French Lignes: 10 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• 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 1936
• Country: Switzerland
• Identification: Dial side with AM logo and TR hallmark of Ebauches SA (in use from 1936). Listed in the Classification Horlogère of 1936.
• 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-33#post-4152075