17”’ | Key Wind | Swiss Lever | Small Seconds |

Remarks:

• Lateral anchor with hidden pallets
• According to the above-mentioned book, the movement was built from 1870 onwards, but the serial number on the movement is more likely to date from 1884

• Listing ID: 1579
• Manufacturer / Brand: Longines
• Caliber: 17B
• Size in French Lignes: 17'''
• Size range mm largest diameter: 31 - 40 mm
• Shape: Round
• Winding: Manual (Key)
• Hands Setting: Key
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: None (Key Winding)
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Unknown
• Production Period: Probably around 1884
• Identification: Listed in Patrick Linder's book: At the Heart of an Industrial Vocation, Longines watch movements (1832 - 2007).
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-44#post-5777922
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)