sssurfer Posted May 18, 2007 Report Share Posted May 18, 2007 Does anyone among our movements gurus know whether the Seagull ST25 and the ETA 2892-A2 (which the ST25 is supposed to be a partial copy of) have the same datewheel? I mean, whether their datewheels are interchangeable? The Zigmeister? Tourby? r11co? Anyone? Quote Link to comment Share on other sites More sharing options...
marrickvilleboy Posted May 20, 2007 Report Share Posted May 20, 2007 datewheel are interchangible Quote Link to comment Share on other sites More sharing options...
sssurfer Posted May 20, 2007 Author Report Share Posted May 20, 2007 Really thanks, Marrickvilleboy! On your nickname I suppose you are that one with great experience on these movements (I made a little search on the forums, and a nick similar to yours was referred to several times on the subject). Quote Link to comment Share on other sites More sharing options...
sammalone Posted May 21, 2007 Report Share Posted May 21, 2007 WOW! Did not know that....thanks for the info Does anyone know if the rotor (oscillating weight) is also interchangeable? Thanks Quote Link to comment Share on other sites More sharing options...
sssurfer Posted May 22, 2007 Author Report Share Posted May 22, 2007 That question came out from a try by Lello to find a better datewheel for the 090 -- and a try by me to give him a little help. The Seagull ST25 was supposed to be the movement in the 090, and also a partial copy of the ETA 2892A2, but both those assertions are now questioned. As a matter of fact, if I place a 2893 datewheel (that is the same size of a 2892 datewheel) on a 090 dial, it seems pathetically small. Oh well, Lello is planning to disassemble his 090 in a couple of days so we shall see... Quote Link to comment Share on other sites More sharing options...
FxrAndy Posted May 22, 2007 Report Share Posted May 22, 2007 WOW! Did not know that....thanks for the info Does anyone know if the rotor (oscillating weight) is also interchangeable? Thanks I think Ziggy said once that they should be and they look identical. Quote Link to comment Share on other sites More sharing options...
sssurfer Posted May 26, 2007 Author Report Share Posted May 26, 2007 Ok, Lello is having his watchsmith disassembling the watch, and the movement has nothing to do with the 2892-A2. Also the datewheel are different size (the 090 being larger, as expected) and absolutely not interchangeable. Quote Link to comment Share on other sites More sharing options...
t Posted May 26, 2007 Report Share Posted May 26, 2007 Ok, Lello is having his watchsmith disassembling the watch, and the movement has nothing to do with the 2892-A2. Also the datewheel are different size (the 090 being larger, as expected) and absolutely not interchangeable. bad news Quote Link to comment Share on other sites More sharing options...
sssurfer Posted May 26, 2007 Author Report Share Posted May 26, 2007 bad news Really. Besides, Lello told me his watchsmith is having a bad time in disassembling a movement that he does not know and of which he doesn't even have an 'exploded' drawing/blueprint/picture. So, should any experts chime in and give any tiny help they can, they will always be welcome... Quote Link to comment Share on other sites More sharing options...
sammalone Posted June 6, 2007 Report Share Posted June 6, 2007 Would anyone know if the hands are at least swapable? WOW! Did not know that....thanks for the info Does anyone know if the rotor (oscillating weight) is also interchangeable? Thanks Quote Link to comment Share on other sites More sharing options...
marrickvilleboy Posted June 6, 2007 Report Share Posted June 6, 2007 what happened sssurfer? I've changed the datewheel of the Seagull with the ETA 2892 before, there is absolutely no problem. (I installed a genuine omega datewheel - 2892 base movement - on the seagull and there is not problem). How come your watchsmith is having a hard time dissembling this movement? its almost a straight copy of the 2892 =S Quote Link to comment Share on other sites More sharing options...
sssurfer Posted June 6, 2007 Author Report Share Posted June 6, 2007 Marrickvilleboy, thanks for coming back. The problem here is that the 2892A2 is much smaller than our 090s datewheel. The date window in our 090s is placed (outer border) 13.2 mm from the center of the dial, while the 2892A2 datewheel has a radius (outer border as well) of just 11.64 mm. That is a 1.52 mm difference, a lot of space. What I can guess is that the movement in your 090 is different from mine and Lello's. Or -- less likely? -- that the datewheel from that omega 2892 based movement was not so identical to the 2892A2 datewheel. Is there any chance that you can measure and tell us the distance of the outer border of your date window from the center of the dial? Quote Link to comment Share on other sites More sharing options...
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