- 28/5/11
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If that 21j is a 21.600 mvt. I've venture to say that's going to be much more obvious in this larger version. While some seem to praise the 21j as being better suited for the GMT complication, the GMT modded 2836-2 or A-clone is an excellent 4th hand modded mvt. and I've never had any issues with any I've owned and still own. Just my two cents....go with a 28.8 mvt.Just saw a 21J movement available on these...128-148 depending on who you get it from.