Hello

[LazyTimegrapher]

I’m new to the forum. I’ve been wearing watches for decades but only in the past two or three years became particularly interested in watches when I found out that automatic watches exist that don’t need batteries. Before that I had always had a simple quartz watch, which worked fine, but once I learned about mechanical watches, I became a lot more interested in the mechanics of how they work and just find the whole way they function very intriguing.

 

I started collecting mechanical watches two or three years ago and have several that I like wearing. Until recently that was as far as my interest went.

 

Then about a month ago a friends quartz watch stopped running and changing the battery didn’t fix it. I decided to see how hard it’d be to fix, so I looked at the movement, found it was a Ronda 762 which I could buy new for $10. I ordered two assuming I might break one of them and decided to try and swap out the broken movement with a new one. I didn’t have the right tools but I managed to swap the movements and get the watch working again. It was really cool to swap the dial and hands and see how the watch worked.

 

Fast forward now and I have a tag heuer aquaracer watch that I got as a gift, and it’s new but running +10sec /day. I asked a watchmaker to try to regulate it but the ones I’ve found say not to mess with it. It’s got an SW200-1 or and ETA2824-2 in it so it should be possible to regulate pretty easily. My problem is that I can’t figure out how to open it. It’s a dive watch but I can’t see any way to open the caseback. So I’m here to see if anyone has any ideas how to open it. I suspect I may also have questions about how to regulate it once I figure out how to open it.

[RichardHarris123]

Hello and welcome from Leeds, England.  We need photos of the back of the watch.

[LazyTimegrapher]

Hello. I started another thread in the caseback section on how to open the watch. It’s got a picture of my watch and a link to the website with more pictures and information 

[LazyTimegrapher]

Here’s a link to the specific model.

 

https://www.tagheuer.com/us/en/timepieces/engraving-online-service/43-mm-calibre-5-automatic/WBP208B.BF0631.html

 

heres an image of the case back 

[Neverenoughwatches]

5 hours ago, LazyTimegrapher said:

I’m new to the forum. I’ve been wearing watches for decades but only in the past two or three years became particularly interested in watches when I found out that automatic watches exist that don’t need batteries. Before that I had always had a simple quartz watch, which worked fine, but once I learned about mechanical watches, I became a lot more interested in the mechanics of how they work and just find the whole way they function very intriguing.

 

I started collecting mechanical watches two or three years ago and have several that I like wearing. Until recently that was as far as my interest went.

 

Then about a month ago a friends quartz watch stopped running and changing the battery didn’t fix it. I decided to see how hard it’d be to fix, so I looked at the movement, found it was a Ronda 762 which I could buy new for $10. I ordered two assuming I might break one of them and decided to try and swap out the broken movement with a new one. I didn’t have the right tools but I managed to swap the movements and get the watch working again. It was really cool to swap the dial and hands and see how the watch worked.

 

Fast forward now and I have a tag heuer aquaracer watch that I got as a gift, and it’s new but running +10sec /day. I asked a watchmaker to try to regulate it but the ones I’ve found say not to mess with it. It’s got an SW200-1 or and ETA2824-2 in it so it should be possible to regulate pretty easily. My problem is that I can’t figure out how to open it. It’s a dive watch but I can’t see any way to open the caseback. So I’m here to see if anyone has any ideas how to open it. I suspect I may also have questions about how to regulate it once I figure out how to open it.

It a new watch , a half decent make and a gift, honestly i would leave it well alone until you have worked on a lot more mechanical watches. You could make a big mistake here by opening it up and poking inside it. A quartz swap is not in the same league as working on mechanical , get some practice under your belt first.

[LazyTimegrapher]

That’s a fair point and is what’s stopped me from making a more concerted effort to open it. Since it’s got an SW200 in it, I was thinking of getting an Invicta diver with the same movement for $200 or so and messing with that first.

 

I was thinking that the SW200 fine regulation screw would be easy to turn to slow the watch down a bit, but maybe it’s easy to break the movement even doing something simple like that.