I have a few 39mm Seiko 5 Sports (SRPE) automatics that I would like to have regulated to make the most of their moderate accuracy potential, beginning with one watch that runs particularly slow.
Can anyone direct me to a shop or individual who can capably regulate a Seiko 4R36 movement to the better end of factory specs? I'd also love to have the finished product pressure tested to 100m after reinstalling the case back.
Thanks all!