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Natural oils turn acidic over time which will often develop verdigris or copper oxide if the main plate is brass.

Actually the very first question should be finding out for sure what his broken or wrong. I think so, the plastic version is preferable because it protects from breakages when one tries to quick set date around midnight. The finger flexes back and then returns to normal. A much appreciated evolution by makers, less warranty returns actually due to user error.

It's just a 160 GBP watch. It has quality, brand and it's popular. The Japan dial and caseback are already worth more than what you would be paying, because people drools after them. Do not think too much, if you like it and can can afford it, go ahead and buy. In all cases there are at least a couple of forums around where people does nothing but talk about models and purchases, potential or not. Hanging out there may be also a pleasant diversion and of course it's free.

Thank you for your introduction and welcome to this friendly forum. We all look forward to your contributions and continued involvement.

There you go Frank jdm is a seiko afficionado, so proper advice. If you are not sure post a picture they guys will soon let you know.

You can get a used king Seiko for that kinda money, its got a Chronograde movement and some are officially certified or a used Universal, perhaps even a JLC.

The SKX007 is the most popular and photographed Seiko ever. Now discontinued, what the OP posted is not a 'real' SKX007, it's successor or a modified watch, with the Prospex logo disliked by many.

Purchased a SeaMaster 600 off eBay was very concerned if this is the real deal or not.."…….Caliber: 601, ref number: 135.011……the watch was made in the 60s the exact year I do not know……..the watch runs , although you cannot turn the hands with the winder. It’s real dirty……… according to the service marks it was clean in the Dias tank past… the problem is there is no identification under the 6 indices…. Is this normal for this model of watch …… Any advice! Thanks Honeybee50

Hi Frank any possibility of a picture of the said watch, for the seikoholics . Cheers

Does it work? If so, the best approach is to leave it alone. Alsi, when is about of extremely economical quartz mov.ts like the in picture (whatever it is), getting parts isn't really an option.

Hi Mike. Yes, after measuring the bits of the old one, I fitted this one and it gives around 40 hours of reserve, so seems a perfect match. GR Non-Automatic Mainspring 1.25 x .105 x 320 x 9.5 Cousins order code GR3126. Moose.

They are all good advice. If you are totally new to watch repair, working on any watch will give you practice. Basic skills like tweezering, picking up small parts, flipping them over, rotating it in your hands and not dropping them or squeezing so hard that they ping away. Learning how to use screwdrivers without slipping and creating scratches. Learning to shape, dress and maintain your tools. Learning how to disassemble a watch. Learning how to clean by hand. Working with springy things. How to handle mainsprings and hairsprings. All the above skills can only be mastered by hours of practice. So start somewhere. Anywhere. As for the advice on getting a working watch is for a beginner to know the proper functioning of a watch. I've seen many non-working watches on eBay with unusual damage that was probably caused by a careless watchmaker. When you successfully take apart a watch, clean, oil and reassemble it, there is no better satisfaction than seeing the balance beating away.

I guess it depends where you are in your journey, are you just trying to get some experience dealing with small watch parts, or are you trying to practice correct reassembly? Trying to get a non-working movement to actually work again should come after, either way.

Well, I have decided for the option of tapping larger threads in the plate and making an appropriate screw. Seems like less of a risk for an amateur. I made the screw so far.

Thank you so much! Job done. Nothing so annoying as a speck of dirt under the glass in my opinion!

I picked up a badly scratched and very dirty Seiko quartz chronograph (7T94 0BS0) on Ebay for next to nothing. Idea was to practice stripping down a watch with pushers, to try a few case renovation techniques and have a general fiddle. A had a little bit of an issue with the fact the previous owner had made a dog's dinner of the battery bay (that was attended to). Mucking about - I decided to give it face-lift. A sort of a nod to speedmaster mkii...or not... Anyway....I'm pleased with it... and will wear it... leather strap? James.

Completed...chocks away!

This was the "before" shot (yuk).