20 1/2”’ | Hand Wind | Swiss Lever | No Seconds | Alarm |

Remarks:

• Réveil avertisseur = wake-up alarm
• Alarm on bell
• Alarm time is set be turning the bezel to the left
• The Swiss Patent CH5073 marked on the movement describes an alarm watch with a single barrel

• Listing ID: 17203
• Manufacturer / Brand: Voland
• Caliber: Réveil Avertisseur Patent 5073
• Size in French Lignes: 20 1/2'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown with pin/pusher
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Other Functions: Alarm
• Jewels: 15
• Setting Lever Screw/Pin Position: None (Split Stem)
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1900
• Country: Switzerland
• Identification: Movement marked with BREVET (patent) 5073 which was granted to Wilhelm Voland in 1892.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)