Mystery of the Parachrom Hairspring in the caliber 4130 solved>>>>>>

[jholbrook]

Check out the updates I've made to the article in the below link:

http://www.rolexreferencepage.com/parachrom/parachrom.html

I think the new information may surprise you. :supercool:

[Passionata]

does it fits into older movements too ?or they ve changed other parameters too?

[jholbrook]

Originally posted by Passionata
does it fits into older movements too ?or they ve changed other parameters too?

I'm not clear on your question: You mean will the "blue" Parachrom hairspring fit on a 4130 with a "non-blue" Parachrom hairspring? It should.

[Passionata]

in case of older 4130of course it does ,
my question is concerning the size of the hairspring , does it it fits into the 3185 ,3135,etc ?

[jholbrook]

Originally posted by Passionata
in case of older 4130of course it does ,
my question is concerning the size of the hairspring , does it it fits into the 3185 ,3135,etc ?

Clearly the answer is yes for the 3185 (3186). Not entirely sure about the 3135, but I suspect so.