I purchased a Seiko divers watch in Canada approx 25 years ago. It had an English-French day wheel. Unfortunately the interior became damaged beyond repair. The case and strap remain in perfect condition. I believe it is of the 7548-700A ? type. I should like to purchase a new movement for this case. Is this possible?

I am going to make an assumption or two. One is you wear your watch regularly. At least every other day. Two is you are not sedentary. Try wearing the watch for three days. If the power indicator doesn't read at least 15 to 20 you have a bad cell (capacitor). If it does charge up to 15 to 20 then see if it lasts very long. Should last a couple weeks or more. If not then you still have the same problem. You can also go to a watchmaker and he will have a piece of equipment that can charge your cell in 3 1/2 hours. Then if the cell goes dead rapidly he/she will replace it. Should cost around 50 or less.

Yes Sir, this indicates that you have to replace capacitor.

The retailer is supposed to provide an instruction booklet with the watch. If you do not have one, please contact the retailer from whom you purchased the watch. If that is not possible, please contact the nearest Seiko Service Center shown on the Seiko world map. In addition, features and operations as well as instruction manuals for some calibers are available below.
http://caliber.seikowatches.com/

Good luck

As thesed watches are sealed it is unwise to attempt any DIY activity.

As you have had the watch for many years it is very likely that it needs a clean. As it is so old, some parts may need replacing and this can only be doneby the maker. (Most makers recommend cleaning every 3 years or so).

If it is only just starting to loose time, then you have done very well out of it!

if your watch caliber is 7s26b(look at the case back plate)is a usual problem of those calibers!the hair spring stuck somehow and the watch runs!a seiko authorized sevice center can help you!dont let anybody else magician to ruin your watch!is a routine repair for someone with knowledge and support from seiko!

http://calibercorner.com/seiko-caliber-nh25a-vs-nh35a/
The link will take you to a drawing of the movement.
You will see an adjustment - or + you need t adjust it to the -.
Best done by a pro but totally something you can do on your own if you have some small screwdrivers.

your watch needs a good service.disassembling cleaning oiling and reassembling!this must done every three to four years in automatic watches!try in a authorized seiko service center!

Hi mtrahan99. My advice is to take it back and get it replaced, particularly if you have only had it a few days. If they won't exchange it or refund you, get a repair under the guarantee. Automatic watches (and Seiko actually make some very good ones) don't need to be worn all the time to wind them, and the fact that it ran so fast and has now stopped would indicate something major like problems with the mainspring. Return it! Hope this helps; Eagle58

If you pull out the stem 1/2 way, you set the date one direction, and the day the other. If you pull it out all the way, it moves the hands and sets the time.

nice day to you! your watch is need of general cleaning and recondition ,efter cleaned and condition the machin ! be sure that the case back gasket is good and apply a small amount of silicon greas to avoid water damage ! close it verry tight ! good luck !god bless !