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More on the Parachrom Hairspring

If you missed my first post on the Parachrom hairspring you may want to check out the details of this fabulous development by Rolex in my original post on the topic. Since writing that post I have been patiently waiting to get my hands on a pre-2005 Daytona with the 4130 movement so I could […]

Rolex Parachrom Hairspring

It seems there is a lot of mystery surrounding this innovation made by Rolex so I will try and clear it up using two documents of pretty good authority. I wish I could say I had talked to the head of the parachrom department at Rolex but I haven’t. The parachrom hairspring didn’t really start […]