t_dawson Posted April 29, 2014 Report Share Posted April 29, 2014 Hi! New here. Just bought a GMT Master 2 ceramic with a DG3804B(if I am correct. Attached is the picture) confirmed running at 21,600 bph. Can it be swap with a Hangzhou 6460 movement with a 28,800bph? Need advice! Thks! Sent from my SM-N9005 using Tapatalk Link to comment Share on other sites More sharing options...
monkeypunch Posted April 29, 2014 Report Share Posted April 29, 2014 You'd need a new set of hands and the dial feet would probably have to be removed, but it could be done if you don't mind the hassle. Link to comment Share on other sites More sharing options...
t_dawson Posted April 30, 2014 Author Report Share Posted April 30, 2014 Thks! Monkey punch! Any recommendations on where to get the hands? And also if the feets are removed, how to mount the movement to the dial? New positioned feets needed? Sent from my SM-N9005 using Tapatalk Link to comment Share on other sites More sharing options...
ceejay Posted April 30, 2014 Report Share Posted April 30, 2014 Don't think the DG3804B has an independently settable GMT hand like this model (should) have. You sure it's a 3804B? Link to comment Share on other sites More sharing options...
sneed12 Posted April 30, 2014 Report Share Posted April 30, 2014 The DG 3804 has an independently adjustable GMT hand. The Hangzhou 6460 is just a clone ETA with GMT, you need all the usual stuff for a 21j to ETA swap: new hands, new dial or cut feet, new stem, etc. The usual answer is don't bother. Link to comment Share on other sites More sharing options...
ceejay Posted April 30, 2014 Report Share Posted April 30, 2014 The DG 3804 has an independently adjustable GMT hand. The Hangzhou 6460 is just a clone ETA with GMT, you need all the usual stuff for a 21j to ETA swap: new hands, new dial or cut feet, new stem, etc. The usual answer is don't bother. If it does have a independently settable GMT hand then why are most people (myself included) using it in there 1675 builds that does not have a independently settable GMT hand? That looks like a modified 2813 to me. Link to comment Share on other sites More sharing options...
sneed12 Posted April 30, 2014 Report Share Posted April 30, 2014 If it does have a independently settable GMT hand then why are most people (myself included) using it in there 1675 builds that does not have a independently settable GMT hand? Honestly, I have no idea. I used an ETA 2846 in my 1675 build. http://www.rwgforum.net/topic/147952-cartel-1675-converted-to-low-beat/ Link to comment Share on other sites More sharing options...
sneed12 Posted April 30, 2014 Report Share Posted April 30, 2014 That looks like a modified 2813 to me. It is a modified 2813. That's what a 3804 is. 2813: 3804: A 3804 is a GMT-modded movement just like a 2836 with GMT module is. The calendar gear driving wheel is used to drive an additional wheel that sits on top of the movement. They are the exact same mod. 1 Link to comment Share on other sites More sharing options...
ghost Posted May 1, 2014 Report Share Posted May 1, 2014 How u guys can get your heads round the chinese names really boggles the mind! Impressive! Link to comment Share on other sites More sharing options...
ceejay Posted May 1, 2014 Report Share Posted May 1, 2014 It is a modified 2813. That's what a 3804 is. 2813: 3804: A 3804 is a GMT-modded movement just like a 2836 with GMT module is. The calendar gear driving wheel is used to drive an additional wheel that sits on top of the movement. They are the exact same mod. From the Cousins UK website Ø26.00mm Movement, China DG2813 Cousins ref: DG2813M Ø26.00mm Movement, Steel Colour Plates, China DG3804 (3804) Cousins ref: CH3804BM The 3804 from CousinsUK is different to the one you show. This is the movement I am using in my 1675. Are the extra wheels leading out to the stem area on yours the function to set the GMT hand independently? The 3804 I have does not have these wheels and the GMT hand is not settable. Link to comment Share on other sites More sharing options...
sneed12 Posted May 1, 2014 Report Share Posted May 1, 2014 The 3804 from CousinsUK is different to the one you show. This is the movement I am using in my 1675. Are the extra wheels leading out to the stem area on yours the function to set the GMT hand independently? The 3804 I have does not have these wheels and the GMT hand is not settable. No, it's the same movement, just with the cover plate installed. The pics I linked to are from the ofrei website. Yes, those wheels connect to the calendar adjustment mechanism to allow independent adjustment. It looks like the movement pictured at Cousins doesn't have the gear-within-a-gear GMT wheel which is required to have an independently adjustable GMT hand (the part holding the hand has to be able to slip against the part geared to the calendar wheel in order to allow adjustment) so perhaps this is a different variant of the same movement. Everything else looks the same. Link to comment Share on other sites More sharing options...
t_dawson Posted May 2, 2014 Author Report Share Posted May 2, 2014 Hi! Thks for all replies! Yes! The GMT is adjustable. The opposite direction of the date adjustment is the GMT adjustment. Well, I presumed is DG3804B after comparing the movement pictures( I maybe wrong ). I wanted to change the movement because sweeping second handing is somewhat jumpy. I prefer the 28,800bph which is very smooth sweeping motion. Just need to know if all the experts here are able to help on the swap. Link to comment Share on other sites More sharing options...
sneed12 Posted May 2, 2014 Report Share Posted May 2, 2014 It's easier and cheaper to sell it and buy a 2836 version than to swap the movement. Link to comment Share on other sites More sharing options...
t_dawson Posted May 2, 2014 Author Report Share Posted May 2, 2014 True! Any takers? haha! Link to comment Share on other sites More sharing options...
interplain Posted January 30, 2016 Report Share Posted January 30, 2016 Hello People, I hope you can help me cos I really need some help with replacing a GMT movement in my Replica Omega seamaster GMT 300 Co-axial 2535.80.00 Co-Axial Chronometer the movement I was looking at was the Hangzhou 6460 movement ETA 2836-2 would this movememt fit in the watch and would the hands and face fit.. I just would like to swap out the movement and replace with a new one.. can anyone suggest one that would if this wouldn't. Thank you Link to comment Share on other sites More sharing options...
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