12 1/4”’ | Automatic | Swiss Lever | Sweeping Seconds

 

• Listing ID: 1441
• Manufacturer / Brand: Buser
• Caliber: 146
• Size: 12 1/4''', Height 6.25 mm
• Shape: Round
• Winding: Automatic
• Hand Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: None
• Jewels: 25
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Incabloc
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: From 1953
• Identification: Rotor marked with Buser logo and 146
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-46#post-6145136
• Country: Switzerland
• Contributor ©: Uhrforum.de member Fridspeed