8 3/4”’ | Hand Wind | Swiss Lever | Direct Sweeping Seconds |

Remarks:

• Difference to ETA 1311 not known.

• Listing ID: 12765
• Manufacturer / Brand: ETA
• Caliber: 1311
• Size in French Lignes: 8 3/4'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• Winding: Manual (Crown)
• 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: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 40 hours
• Production Period: Unknown, probably around 1950
• Country: Switzerland
• Identification: Movement marked with ETA logo and 1301 under the balance wheel. Listed in the Flume K1 catalog, but w/o picture.
• Contributor ©: Uhrforum.de member buchenhain
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-70#post-9822253