The Watch Site banner

1 - 18 of 18 Posts

·
Registered
Joined
·
1,578 Posts
Discussion Starter #1
I've owned this watch from new, and wore it every day for many years. As you can see from the first pics it wasn't treated especially kindly but it always performed faultlessly, so I decided it deserved a service and buff up. I couldn't find much info online so here's some quick notes and pics of the process.

Seiko must have been pleased with the movement as the intro in the Tech Guide describes it as "epoch-making". It has 13 jewels and a 4 year power reserve, mine has always been accurate to within a minute per year. The power reserve is achieved by the 'Auto Relay' function - when you're not wearing the watch, the hands stop moving, but the electronics inside keep running. Then, when you pick up the watch again and give it a little shake, it wakes up and the hands spin round to the correct time.

The Technical Guide is really excellent and covers fault finding in detail as well as basic servicing, though my watch has never been opened and just needed cleaning and oiling, new crystal, capacitor, gaskets and springbars.

The crystal can't be removed without tools, it needs to be pressed out from inside the case, and worryingly, even more force is needed to press the new one in from the outside.

The hands are very flimsy and not as good quality as on automatics IMHO. It's easy to push the minute hand on a little to far, so it passes the point where it grips the centre wheel, it then uselessly swings freely around the pinion and has to be removed and refitted.

I was worried about refitting the train wheel bridge as there are lots of tiny components to line up, but it went straight on with no bother at all. The dial side gave some problems as the date advance mechanism has a very fiddly arrangement.

There are three coils, so great care is required when working on the movement as the smallest slip can spell disaster. One coil drives the second hand, the second coil has dual windings - one for the hour minute hand under normal use, and one for auto relay mode. The third coil is used in reverse (i.e. mechanical to electro) to charge the battery.

However, the best thing of all is that all the screws are the same size, so impossible to get muddled up.

Cheers, Sam.















































 

·
Registered
Joined
·
6,228 Posts
Wow great post. Thank you!

My perpetual with Auto Relay is fun to pick up after a few days of inactivity. The big date switches over at midnight every night even though the hands are not moving. Advancing the hands manually to adjust the time does not change the date going past midnight, indicating no mechanical linkage but rather microprocessor controlled.

Just got mine back from Seiko USA Service. 3 months old and acting up, not changing date on occasional date changes. Let's see if they got it right again.
 

Attachments

·
Registered
Joined
·
5,973 Posts
Thanks Sam, that was interesting:93: and the watch looks super.

I have only done a handful of quartz movements and the size of the gear train wheels can be a shock after automatics. The 5J22 is a nice movement.
 

·
Registered
Joined
·
1 Posts
I have the same watch. If I may,,, what did it cost you in parts to service yours?
The bracelet just broke at a point where the pins don't seem replaceable (hidden pins). The only way it could have been assembled is from the outside yet there is nothing there that I can see. Second link from the case. Have you seen replacement bands for this watch or is this one repairable?

Thank you. Registered to ask this question.
 

·
Registered
Joined
·
1,578 Posts
Discussion Starter #7
Hi - and welcome - the parts cost me £26 for the crystal, and £17 for the capacitor and gaskets (inc VAT, but +P&P) from Cousins.

I afraid I don't know how to mend your bracelet... but I think ebay seller wristwatcherabc has replacements from time to time, but I've never used them so I can't vouch for them. http://stores.ebay.com/WristWatcherDotCom

If you take some photos of your broken strap and start a new thread on the forum here somebody might be able to help you get it fixed or find a replacement.
 

·
Registered
Joined
·
20 Posts
I have a brand new bracelet for these - and as a bonus a watch comes with it (one of the ones with the rotating bezel):)
I have always liked the blue dial that you have, mine is the grey one. I am in the process of taking mine down to change out the capacitor and gasket. I do not think I will be taking it down quite as far as you have, but I may look into replacing the rather beat up crystal.

Here is a pic of one (I have two of the same model) of mine.



Ron
 

·
Registered
Joined
·
4,951 Posts
If not for that ugly nose, I'd like them ;) (seriously, what's up with the silver dome?)
 

·
Registered
Joined
·
20 Posts
If not for that ugly nose, I'd like them ;) (seriously, what's up with the silver dome?)
As far as I can tell, it's only purpose is to cover the center of the hands. I will admit, I really like this watch, if for nothing else, when the sun hits the watch, it does not cast a reflection like the ones with flat crystals. I know it is probably crazy, but while in the Marine Corps, we learned not to have anything that shined or rattled. Just a leftover from that era. :eek:
 

·
Registered
Joined
·
20 Posts
I have ordered the parts I need for the old girl, and I found an SMA003 sales sample for sale on ebay today. There are no guts inside it, but the case and bracelet are all there. My plan is to put my guts and back cover on the new chassis. This way it will work and look like it did when I got it forever ago. I hope it was not one of the members here that I was bidding against.

New case front and back






 

Attachments

·
Registered
Joined
·
20 Posts
I have been looking about, and I have yet to find out the procedure for removing the crown from the mechanism. Might anyone have an idea so I don't do a caveman on the tiny parts? Thanks very much for your assistance.

Ron
 

·
Registered
Joined
·
1,578 Posts
Discussion Starter #15

·
Registered
Joined
·
514 Posts
Nice work friendly. I just did a couple of Kinetics over the weekend myself. Those little stepper motors are fun to put in aren't they?
 
1 - 18 of 18 Posts
Top