22”’ | Hand Wind | Swiss Lever | Small Seconds | Minute Repeater | Chronograph |

Remarks:

• Minute repeater with two hammers on bell springs
• Column-wheel chronograph (central stop second, no minutes counter)
• Chrono parts on the bridge side, repeater parts on the dial side
• The movement shown is missing the minute wheel
• The movement is marked with two Swiss patent numbers
  • 334 on the dial side
    CH334 was granted to C. Barbezat-Baillot in 1889, and cancelled in 1904.
  • 12172 on the bridge side
    CH12172 was granted to Stolz Frères in 1896, and cancelled in 1901.
  • Probably Hahn used parts of these patents after they were cancelled, or the have licensed their usage before
• Charles Hahn registered a very similar movement in 1896 in the Swiss Official Gazette of Commerce as model no. 885.
• Invicta also marked some of their repeaters with Swiss patent numbers 334 and 12172 (see Invicta Répétition à quarts + Chronographe”’). So this repeater could also be made from Invicta, using a base movement from Hahn.

• Listing ID: 18891
• Manufacturer / Brand: Hahn
• Caliber: Répétition à minutes + Chronographe 22'''
• Size in French Lignes: 22'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown with lever
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Other Functions: Repeater + Chronograph
• Jewels: 18?
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• 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: Unknwon
• Production Period: Unknwon, probably around 1900
• Country: Switzerland
• Identification: Dial side marked with HAHN LANDERON. See also remarks above.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)