8 3/4”’ | Hand Wind | Swiss Lever | No Second |

• Listing ID: 184
• Manufacturer / Brand: Hahn
• Caliber: 8 3/4''' octogone
• Size: 8 3/4'''
• Shape: Form
• Winding: Manual (Crown)
• Hand Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Around 1925
• Identification: Setting lever and setting lever spring listed in the Newall Fingerprint Catalog of 1951 and in the Paulson of 1950 as Hahn 8 3/4''' (round). An advertisement by Hahn in La Fédération Horlogère Suisse from 1925 mentions an octagonal movement with 8 3/4''' and shows a very similar one with 7 3/4'''. This is most likely the 8 3/4''' octagonal movement mentioned.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-60#post-8532401
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)