7 3/4”’ | Automatic | Swiss Lever | Direct Sweeping Seconds

• Listing ID: 12860
• Manufacturer / Brand: Tissot
• Caliber: 17.2 R-21 / 760
• Size in French Lignes: 7 3/4'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Right (0 - 120°)
• Shock Protection: Incabloc
• Beats per hour: 21,600
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown
• Country: Switzerland
• Identification: Listed in the Flume K2 catalog from 1962 w/o picture, in the K3 catalog from 1972 with picture. Original Datasheet from 1971 available.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)