11 1/2”’ | Automatic | Swiss Lever | Direct Sweeping Seconds | Date |

Remarks:

• Base movement = Felsa 4007
• Quick date setting by repeatedly changing 21 – 24 o’clock

• Listing ID: 13513
• Manufacturer / Brand: MST
• Caliber: 452
• Size in French Lignes: 11 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date
• Jewels: 23
• 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: Approx. 44 hours
• Production Period: 1960 - 1963
• Country: Switzerland
• Identification: Movement plate marked with MST 452.
• 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-72#post-10077508