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

Remarks:

• Hidden click
• Different designation in different movement finders (39 AC or 17.39 AC)
• AC may stand for Ancien Calibre, i.e. an older version
• The movement is used in pocket watches of the POP brand (Comptoir Paris-Province). The movement may have been made exclusively for POP because of the P-shape of the wheel train bridge.
• Same movement with different bridge shapes: LIP 39 AC / 17.39 AC

• Listing ID: 390
• Manufacturer / Brand: LIP
• Caliber: 39 AC / 17.39 AC / Model No. 99
• Size in French Lignes: 17'''
• Size range mm largest diameter: 31 - 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown with pin/pusher
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Left
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Probably around 1900
• Identification: Shown in the Flume K1 in the 1947 part. Bridge form registered by Lipmann in 1903 in the Swiss (!) Official Gazette of Commerce as model No. 99. Model No. 99 is not an official caliber designation, but was used to register the design.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-58#post-8265176
• Country: France
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)