Any thoughts/opinions/technical observations on how the 1003 compares with this version of the movement?
Would welcome your thoughts!
both are quite similar. Cal 1003 was launched about 20 years prior to JLC cal 849 (1955 vs 1975 for the JLC which in fact was born cal 839 and changed its name to cal 849 in 1994) In terms of thickness the cal 1003 was 1.64mm thick whereas I belive that cal 849 os slightly above 1.80mm.
So cal 849 isn't reall the ebauche for cal 1003 which was exclusive to AP (cal 2003) and VC. However VC will shortly launch a cal 1003 made 100% in house, stay tuned....