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

Remarks:

• There may also have been a Lépine (open face) and a Savonnette (hunter) version of both the AS 137 and the AS 153
• Part of a family of 9 movements with identical dial sides but different bridge shapes:
  AS 325, AS 172, AS 153, AS 615, AS 331, AS 332, AS 327, AS 618, AS 625
• The movement only has jewels where they are visible when the watch is opened

• Listing ID: 3879
• Manufacturer / Brand: AS
• Caliber: 153
• Size: 13'''
• Shape: Round
• Winding: Manual (Crown)
• Hand Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: None
• Jewels: 9
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown
• Identification: Stamped with AS in an oval on the dial side. Listed in the Classification Horlogère from 1936. There, however, the images of AS 137 and AS 153 appear to be interchanged. In the Paulson of 1950, the illustrations seem to be correct (see pictures).
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-18#post-2909086
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)