http://watchmakingblog.com/2008/05/07/rolex-parachrom-hairspring/ A mechanical watchmaker in a digital world Thu, 28 Aug 2008 13:04:59 +0000 http://wordpress.org/?v=2.6 http://watchmakingblog.com/2008/05/07/rolex-parachrom-hairspring/#comment-403 John B. Holbrook, II Mon, 09 Jun 2008 18:52:50 +0000 http://watchmakingblog.com/2008/05/07/rolex-parachrom-hairspring/#comment-403 I actually spoke with James Dowling in New York about three weeks ago on this very topic, and I've been speaking with my contacts at Rolex USA in an attempt to resolve the controversy. At present, James agrees with me that the non-blue hairsprings found in any 4130 movements ARE NOT Parachrom. The blue color of the Parachrom hairspring is a direct result of the manufacturing process, and a byproduct of combining two elements to create the Parachrom allow - as soon as the newly formed element hits oxygen, it turns blue. As he and I understand the manufacturing process, it is physically impossible to have a Parachrom hairspring that isn't blue. The most logical explaination here is that the the Parachrom Blu hairspring has not been on the caliber 4130 from the begining as was originally communicated, though I have not received confirmation of this. I plan on updating my article on www.rolexreferencepage.com once I have a final answer. I actually spoke with James Dowling in New York about three weeks ago on this very topic, and I’ve been speaking with my contacts at Rolex USA in an attempt to resolve the controversy. At present, James agrees with me that the non-blue hairsprings found in any 4130 movements ARE NOT Parachrom. The blue color of the Parachrom hairspring is a direct result of the manufacturing process, and a byproduct of combining two elements to create the Parachrom allow - as soon as the newly formed element hits oxygen, it turns blue. As he and I understand the manufacturing process, it is physically impossible to have a Parachrom hairspring that isn’t blue. The most logical explaination here is that the the Parachrom Blu hairspring has not been on the caliber 4130 from the begining as was originally communicated, though I have not received confirmation of this. I plan on updating my article on http://www.rolexreferencepage.com once I have a final answer.

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