I think I’ve finally got this thing regulated. -25spd dial-down on the timegrapher has given me about +2.5spd on the wrist. I’ll give it the weekend to confirm it stays there then it’s time to tackle a Mako that’s been giving me fits for a couple of years now.
Just dropped a new dial into this 7017-6050 that needed a proper upgrade. Kanji day of course !
This requires the use of a Seiko S-510 holder to support the jewels during hand installation.
Happy Sunday Everyone !