2 3/4 x 8 1/4”’ | Hand Wind (Backwinder) | Swiss Lever | No Seconds |

Remarks:

• Rayville SA = company name of Blancpain from 1932 for about 40 years
• Winding on the bridge side (backwinder)
• Escape wheel with KIF Duofix setting

• Listing ID: 4502
• Manufacturer / Brand: Rayville / Blancpain
• Caliber: R.59
• Size in French Lignes: 2 3/4 x 8 1/4''' (the 2 3/4''' is a manufacturer's specification, it is actually more like 3''')
• Size range mm largest diameter: 0 - 22 mm
• Shape: Form
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: None (Backwinder)
• Balance Position: Right (0 - 120°)
• Shock Protection: KIF Flector
• Beats per hour: 21,600
• Balance Type: Screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1955
• Identification: Marked R.59 on the dial side, Listed in the "Official Catalogue of genuine Swiss Watch repair parts" from 1955.
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)