Waltham R.310 = AS 1700

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11 1/2”’ | Automatic | Swiss Lever | Direct Sweeping Seconds |

Remarks:

  • Rotor winding in both directions
  • A normal 17 jewel AS 1700 serves as base movement. The remaining 83 jewels are located in 42 holes in a ring on the rotor. There are two jewels in every hole except one. The ring is guided in a polished slot in the movement holding ring

 

  • Listing ID: 1312
  • Manufacturer / Brand: AS / Waltham
  • Caliber: R.310
  • Size: 11 1/2'''
  • Shape: Round
  • Winding: Automatic
  • Hand Setting: Crown
  • Seconds Hand: Sweeping seconds (central seconds)
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date & Day: None
  • Jewels: 100
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: Incabloc
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: 41 hours
  • Production Period: Unknown
  • Identification: Automatic bridge marked Waltham R.310, plate marked AS 1700 (base movement)
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-55#post-7662050
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member JackDaniels83

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