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

Remarks:

• Movement marked with BREVET No. 1 and 21.23.1967, among others. The movement is actually depicted in Swiss Patent No. 1 of 1888 (albeit with a crown winding mechanism with a lever instead of a pusher). 21.23.1967 stands for Swiss patents no. 21 of 1888, no. 23 of 1888 and no. 1967 of 1890, which also belong to Paul Perret.
• Screw-set jewels (Chatons)
• Fine adjustment with cam disk
• Anchor with counterweight
• Hidden pallets
• Maltese cross stopwork on the mainspring barrel

• Listing ID: 1247
• Manufacturer / Brand: Paul Perret
• Caliber: 19'''
• Size in French Lignes: 19''', Height 7.8 mm
• Size range mm largest diameter: > 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°)
• Holes in setting lever spring or rocking bar: 0 = no setting lever spring and no rocking bar
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Around 1890
• Country: Switzerland
• Identification: Movement marked with PAUL PERRET PATENT ( trademark registered in 1888). An exact caliber designation is not known.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-47#post-6441885
• External Link 2: https://watch-movements.eu/blog/en/2021/07/03/paul-perret-and-the-swiss-patent-no-1/