Ich hab den link wieder gefunden http://www.timekeeperforum.com/showt...orer-II-216570

Auszug daraus:

6. MOVEMENT

Rolex manufactured a new movement for the Explorer II 216570:
The Cal. 3187, featuring the inhouse Paraflex shock protection system and Parachrom Bleu hairspring.
The Cal. 3186 in the GMT II 11671x also has the inhouse Parachrom Bleu hairspring...

Now, the question is: Both featuring a GMT feature, is the Cal. 3187 identical to the Cal. 3186 apart from use of the inhouse shock system instead of using the outsourced (SWATCH Group) KIF system?

Answer is Yes... and NO.

Thing is, that the main plate of the Cal. 3187 is bigger than the one of the Cal. 3186:


  • Cal. 3186: 28.5mm
  • Cal. 3187: 30.97mm


Where most other watch companies introducing a bigger watch model would simply use movement spacers to make a small movement fit into a big case, Rolex did not compromise:

They made the movement bigger, too! This is what makes Rolex so special!