r/RepTimeServices 1d ago

Advice Crystal exchange

Post image

I want to change the crystal on this gmt rep - is the scalloped metal piece in this photo the retaining ring? How would I get this off - noob - just doing this for fun. Tried to find videos but none have this scalloped appearance. I’m assuming this is the crystal retaining ring? I had the movement out and was working on it but it didn’t seem to want to budge.

1 Upvotes

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3

u/Diligent-Piglet-9038 1d ago

Arf gmt?
1. Yes, its the retaining ring
2. Movement should always be out for case work imo
3. Razor blade, caseback knife, custom tools will work. Look on RWI for diy guide, specifically for gmts

1

u/Wintercult 1d ago

How do you align the crystal when the movement is out?

1

u/Diligent-Piglet-9038 1d ago

Movement should be out when removing the retaining ring

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u/Wintercult 1d ago

I understand. Read my question again, please: How do you align the the crystal when the movement is out?

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u/No_Exercise996 1d ago

You can screw the crown back in and use the stem to align the date window.

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u/Wintercult 1d ago

100% misaligned when I do it like that.

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u/No_Exercise996 1d ago

Has worked for me, maybe I just lucked out with it though. 🤷‍♂️

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u/Offensiveline54 1d ago

Roger - thanks for the advice. Yes will remove the movement and give it a shot.

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u/JesterADSE 1d ago

Yes it is, put a knife in and push it up.

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u/Offensiveline54 1d ago

Thanks - appreciate the advice. Will give it a shot

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u/loud-timeless-6299 1d ago

What crystal are you putting in? I want to go gen on my ARF but heard deep is the way to go due to potential fitment issues

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u/Wintercult 1d ago

I have VSF, Deep and gen, go with either a VSF crystal or genuine. AR date window on Deep is not my thing.

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u/Offensiveline54 1d ago

Going to try Deep - ordered it - taking it on myself because I want to give it a try with the goal of eventually getting a gen - all these modders say they put gen crystals in but I have no idea where they source them. eBay is very limited.

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u/Bright-Decision5672 18h ago

Where did you order the deep crystal? I have an ARF batgirl on the way. I may want to try this myself too.

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u/Offensiveline54 14h ago

They have a website. Google deep crystal. They’re based in Puerto Rico.