Reference

Ref. 3970

Perpetual calendar chronograph launched in 1986, built on a Lemania-based chronograph movement.

Introduced
1986
Calibre
CH 27-70 Q

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3 directions from here

  1. Sister referenceRef. 3940The plain perpetual it was launched beside.Reference
  2. Movement lineageLemania 2310The Lemania base inside Patek's perpetual chronographs.Movement
  3. Next generationRef. 5970Larger case, same Lemania-based chronograph, 2004.Reference

Films on Ref. 3970