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Caliber Valjoux 57

Stopwatch HEUER-LEONIDAS ref. 572 --- caliber Valjoux 57 ---

Caliber Valjoux 57 is a top-end and accurate movement. There are 2 versions :
– a single command version : start, stop and reset to zero by consecutive depression of the crown
– a two commands version : start/stop and go on by side button and reset by crown (reset can be activated when the stopwatch is stopped)

Caliber Valjoux 57 can have a “rattrapante” (split-time) option which is activated by a pusher at 11 (as it can be seen on the above pictures and video of a HEUER ref. 572)

It was produced from the 40’s to the 70’s

Technical specifications :

  • 15 jewels
  • 42,10mm
  • permanent motion
  • jellewed lever escapement
  • incabloc shock protection
  • unbreakable mainspring
  • antimagentic

Additional documention : mccawcompany, time2tell and onthedash