I'm on a very simple project. I would like to assemble a watch. I have look at "Build Your Own Automatic Watch - Using parts from eBay" who was very clear and well done!
I would like to put a Miyota 8N24 in a case who can fit a Miyota 8215, since I don't find any case specialise for the 8N24.
This two movement have the same diameter but the 8215 have bigger height. 5.67mm vs 5.55mm fopr the 8N24
On the "shemas" they seems to have the same base, but I'm clearly not an expert.
I realy want too biuld a watch with a Miyota since I like japanese watches.
Thank you for your advise !
I have been practicing watch servicing these past months. So far I have successfully serviced a ST36 (ETA6497 clone), thanks to Mark's watch repair course which is awesome! I have also tried to service a NH25A, and messed up the hairpsring (replacement on the way), and a Miyota 8215. Everything was going well with the 8215 until I reassembled the train bridge and noticed that the escape wheel wobbles when I turn the wheels. My guess is that I accidentally broke off the upper pivot during cleaning. I was looking for a replacement escape wheel and found it at Cousin's, but they are out of stock. Anyone know any other place I could get one? Thanks.
PS: Trying to keep a positive attitude after messing up two movements, but practice makes perfect. :)
I actually have a couple problems I could use some help with. I’ll start with the more serious one I guess. I don’t have any trouble getting the back off my watches or changing the battery, but every time I use my tool to snap the back back on, something happens to the crown pin. It just lets go and comes out. I thought it was a strange occurrence the first time but I tried another one this week and got the same results. I’ve done this same thing on hundreds of other watches of different types and brands but never ran into this problem before. Can someone please help me figure out what I’m doing wrong?
Also, a couple of my watches don’t seem to be able to adjust to my teeny tiny wrist size. In my Monarch, the majority of the links don’t have holes to remove the pins. Is there any other way to remove a couple links. Any advice would be appreciated immensely!!!
Greetings all. I think I may have made a mistake in buying a GP watch that has the 641-875 quartz movement in it. It's a nice looking watch, with a very solid case, but I didn't find out about the caliber number until after I bought it. The seller did not have an image of the movement. Since I usually like GP movements, I thought it was worth a little gamble on getting it running, even if I had to clean it. After the auction ended I found out about these GP quartz movements that are impossible to get parts for, and that the dead ones usually need a circuit that is made of unobtainium.
Since the watch had an old battery (Union Carbide brand) in it I figured that I might get lucky and get it running with a fresh battery. I wasn't counting on that happening since the guy who sold it was a watch guy. It would be hard to believe that he didn't at least try a new battery in there. Anyway, it didn't get it running.
Does anyone know about these rather interesting old quartz movements? I believe it is from the late seventies perhaps? Is there any use in seeing if one of those quartz movement "spinners" could free things up? Unfortunately, it's not like GP provides technical info the way a company like ETA does, so if I take it apart I'll have to take a lot of images as I do. Anyway, any help on this is appreciated. Thanks ahead of time. Stay healthy, all. Cheers.
Hopefully a decade of experience after graduation from Mark Lovicks courses, you will have acquired enough skills to attempt servicing the Wittnauer complications. Let us enjoy watching its picture please.
Meanwhile we can have fun playing baseball or with the seiko.
Just a thought.
You know, I wonder if I could adapt a micro-mesh single-serving reusable coffee filter to the same purpose. I keep ending up working on large (50 & + mm.) Swiss pocket watch movements that would not fit into smaller cleaning holders.
But they might fit in a coffee filter.
You gave me an idea, sir! Thank you.
Karl here. I would love to see pics if you can post them. I know very little about Seiko. But Wittnauer I've seen off and on. I know some repair technicians can charge a pretty penny, but did the estimate they gave you go into detail on what the needed repairs were. That figure does sound pretty steep. Was it dropped from a B52? (Which could actually cause a costly batch of repairs I imagine.) Either way, it would be a great thing to get it running. I wish you luck with them both.