8 3/4 x 12”’ | Hand Wind | Swiss Lever | Small Seconds

 

• Listing ID: 4813
• Manufacturer / Brand: Helvetia
• Caliber: 75 / 75A
• Size: 8 3/4 x 12‘‘‘
• Shape: Form
• Winding: Manual (Crown)
• Hand Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Nickel?
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1949
• Identification: Movement marked with HELVETIA and 75A. Listed as Helvetia 75 in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-5#post-1580825
• Country: Switzerland
• Contributor ©: Uhrforum.de member falko