11 1/2”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

• Aegler was first a supplier, later part of Rolex
• The movement is marked W&D for Wilsdorf & Davis, the company that was later renamed Rolex
• The same movement is also available with indirect center seconds, possibly also with small seconds
• The basic form of the movement was registered by Aegler as early as 1903 as model no. 1 in the Swiss Official Gazette of Commerce. See extra picture
• See also Aegler Rebberg 9 1/2”’

• Listing ID: 3235
• Manufacturer / Brand: Aegler
• Caliber: Rebberg 11 1/2'''
• Size in French Lignes: 11 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Right
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, possibly around 1920 (the unmarked dial has a red twelve, which was very popular between 1915 and 1925)
• Identification: Dial side marked with Rebberg.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-27#post-3702704
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)