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

Remarks:

• Movement family:
  • MST 450: 18,000 bph, no date
  • MST 451: 18,000 bph, date
  • MST 475: 21600 bph, no date
  • MST 476: 21600 bph, date

• Listing ID: 7827
• Manufacturer / Brand: MST / Roamer
• Caliber: 450
• 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: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Incabloc
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 48 hours
• Production Period: Unknown, probably around 1966
• Country: Switzerland
• Identification: Dial side marked with MST 450. Original datasheet from 1966 available. Listed in the Engelkemper catalog from 1969.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)