Crazy Question For Watchcruncher’s: Which of all Hamilton H-series movements have the synthetic hairspring??
I have tried to find this online with only one of the movements; H-21-SI being the only one listed. It was brought to my attention that at time of ser...
6
6
comments
We use cookies (and other similar technologies) for many purposes, including to improve your experience on
our
site and measure analytics. Click "Accept all" to accept these uses. Read more in our Cookie Policy.
This account is verified. WatchCrunch has confirmed that this account is the
authentic presence for this person or brand.