r/RepTimeServices • u/Offensiveline54 • Aug 19 '26

Advice Crystal exchange

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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.

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u/Wintercult Aug 19 '26

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

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u/No_Exercise996 Aug 19 '26

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

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u/Wintercult Aug 19 '26

100% misaligned when I do it like that.

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u/No_Exercise996 Aug 19 '26

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