Brucy Posted March 17, 2015 Report Share Posted March 17, 2015 (edited) Ok, being a complete noob here and amazed at how wonderful this site is, I stuffed the keyless works on my GMT so when I got my sub I was keen to remove the stem and crown properly this time which I did, only to find that not all crowns are equal! Funny that should have been blatantly obvious but I thought once I got the outside measurement I would be fine! Can someone please help me identify which is the correct crown I need? Have attached picture of the crown I bought from RWG on the left and the sterile one I actually need to replace on the right! Which is also the same crown type that's on my sterile GMT Many thanks and if you could also point me to where I might get one that would be fab! Thanks everyone for some awesome expertise and great reading Edited March 17, 2015 by Brucy Quote Link to comment Share on other sites More sharing options...
tomhorn Posted March 18, 2015 Report Share Posted March 18, 2015 Which GMT? Quote Link to comment Share on other sites More sharing options...
dbane883 Posted March 18, 2015 Report Share Posted March 18, 2015 Looks like a 703/704. I guessing it's for a BNLR? Did you damage the crown which is why you want to replace it? If so how if you just screwed up the keyless? Anyhow, not enough information. Quote Link to comment Share on other sites More sharing options...
gmg_3 Posted March 18, 2015 Report Share Posted March 18, 2015 Why not just change the tube so you can use the left crown ? Quote Link to comment Share on other sites More sharing options...
Brucy Posted March 19, 2015 Author Report Share Posted March 19, 2015 Wow thanks guys, OK, so the left crown is a TC branded crown as far as I'm aware and the right crown is sterile which is why I want to change out. Both tubes fit the stem on both my GMT and Sub, but the crown on the left does not screw onto either case, both watches look to be Parnis I assume and I was hoping to mod. GMT is a 166110 style and the movement no longer sets correctly. My skills are not there yet to fix so I thought I might try to mod my Sub instead, will add some pics but really appreciate the help thanks Quote Link to comment Share on other sites More sharing options...
Brucy Posted March 19, 2015 Author Report Share Posted March 19, 2015 (edited) My sub on the left which I plan to mod until I develop the skills to attack my GMT which is on the right in pieces still... The movement still winds, but you can't set it with the crown in any position anymore which is why I understand the problem to be with the keyless works Edited March 19, 2015 by Brucy Quote Link to comment Share on other sites More sharing options...
Brucy Posted March 19, 2015 Author Report Share Posted March 19, 2015 Looks like a 703/704. I guessing it's for a BNLR? Did you damage the crown which is why you want to replace it? If so how if you just screwed up the keyless? Anyhow, not enough information. Sorry dbane, was that the crown on the left is a 703/704 or the one on the right Quote Link to comment Share on other sites More sharing options...
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