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Discussion Starter #1
I recently picked up a watch similar to this one. Exactly this one, this is just not mine pictured. I have a few questions if someone can be so kind to answer.

1) Any idea the case material and can it be refinished?
2) Average cost of crystal replacement for a watch such as this. Using mineral crystal.
3) Is it possible to take a watch like this, and replace movement with a new quartz movement? In other words, keep the dial and hands and either place new quartz movement into this case, or transfer dial and hands to new case with new quartz movement?

The watch runs now, but I'm sure the day will come when it doesn't. I love the look but I'm not going to pay the cost to repair or replace the hand wind movement. Don't think it would be worth it. If anyone can tell me anything about this watch it would be greatly appreciated.


s-l300.jpg vintage-sheffield-allsport-dive-watch_360_45524940d90973fd55b7331b09fe5cb2.jpg
 

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It's a cheap diver style watch with a chrome case so just for fun and not a real sports watch. Inside should be a 1 jewel Ronda 1215 pin-lever movement.

Sheffield was based in New York and sold cheap Swiss made watches under their own name.
 

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Discussion Starter #3
Yeah. I knew it wasn't some high end diver watch. But I love the look. Do you know if that movement is still made, or whether it can be replaced with a modern movement? I'd love to wear the watch as is with some degree of reliability. Would it be as simple as finding a movement that fits and using a new crown? Or do you have to find a movement that fits he hands as well?
 

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The hands will be a big problem as Ronda used 180/130/20 hole diameters for the hands and modern day Ronda movements use 120/70/20.

A crown won't be a problem as it's just a standard crown and you just messure the pipe and get a matching crown.

The dial feet won't fit a new movement but these can be cut and then you use sticky pads to fasten it to the new movement.

The new date wheel woun't fit either but you could just leave the old one in place and not bother with it working.
 

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Discussion Starter #5
So it sounds like I would be better off tracking down that old movement and just replacing the existing one? When it breaks, of course. Only working movement I can find is $70. I only paid $1 for the watch. I don't mind putting money into an old watch. Even a cheap one. But I'd much rather do that with a modern movement if possible.
 

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I would enjoy the watch for what it is now and not worry about it breaking in the future.

Getting an alternative movement to fit perfectly and work in that case will be a massive hassle and not worth it IMO. I have done it myself with a watch that had a lot of sentimental value and would be loathe to try it again.
 

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coachstu...Hello.

I suggest just getting it running! It is probably a 1 Jewel movement, yet pretty robust: they made them to go quite a while, & put up with a fair amount of 'rough' use. Once your watch was cleaned & oiled and put in good running condition, it might well carry-on for quite a few years.

A crown will be easy, as will a plastic crystal. The case will always look like it's been left out in a field over the Winter (!), but it can be cleaned & shined-up a bit...it'll look pretty good, and have a Story to tell.

I've owned & worked on a few of these, and--although they can be bit of work to get right--do go together / tick / work as advertised.

'They are what they are'...! Michael.
 

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Discussion Starter #9
Thanks for the replies! It runs OK now. And I guess it does have a story, just not mine. I'll just make one up.
 

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Discussion Starter #10
I guess I'm still at a loss as to why the dial and hands cannot be transferred to a suitable case and attached to a new movement without too much difficulty.
 

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Anything can be done it’s a bit like putting a car engine into a motorcycle. Nothing fits or lines up. Both are engines but that doesn’t mean it’s a bolt in conversion. If you had the skills necessary to do the work you wouldn’t be asking the question. To pay someone who has the skills to do the work would cost more than buying a new quartz watch.

But if you are prepared to do the studying and learn the skills necessary then go for it.

How to do it has been described above.
 

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Here I s one of mine. Not a Sheffield, the only difference is probably the name. This crystal was polished, case cleaned, movement lightly oiled and new band. Prior to polishing you really couldn't see the face.
Watch runs and keeps good time. These are fairly indestructible little creatures.

Spartan Seawatch.JPG
 

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In my opinion, this is not a watch to invest time and money in. Don't refinish the case or mess around with the movement. These were basically made to be entry-level disposable watches (by various companies in addition to Sheffield), and produced in massive numbers, so many examples are readily available on eBay at modest prices (below $50). If it runs ... great, it's a good entry into vintage watches for you, so just enjoy it until it can't be maintained any further. At that point, you can re-assess your interest in vintage watches, and then either buy another cheap one, or perhaps at that point you may be interested in considering a higher quality piece with a better movement, stainless steel case, etc.
 

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Discussion Starter #14
Here I s one of mine. Not a Sheffield, the only difference is probably the name. This crystal was polished, case cleaned, movement lightly oiled and new band. Prior to polishing you really couldn't see the face.
Watch runs and keeps good time. These are fairly indestructible little creatures.

View attachment 14298347
See, that's a nice looking watch. Hence my reason for wanting a new quartz movement.
 
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