19 1/2”’ | Hand Wind | Pin Lever | Small Seconds |

Remarks:

• Lateral anchor
• Pillar construction
• Barrel extends slightly beyond the movement plate
• The intermediate wheel between the crown wheel and ratchet wheel allows the third wheel to be omitted from the wheel train (see patent).

• Listing ID: 644
• Manufacturer / Brand: O. Maire
• Caliber: 19 1/2''' Roskopf
• Size in French Lignes: 19 1/2'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown with pin/pusher
• Seconds Hand: Small seconds
• Escapement: Pin Lever
• Date, Day, Month...: None
• Jewels: 3
• Setting Lever Screw/Pin Position: Center
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 17,280
• Balance Type: Pseudo screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1930
• Identification: Not listed in any movement finder known to me. Described in Swiss patent CH162784 by Otto Maire from 1932.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-56#post-7866973
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)