En kjekk oversikt, hentet fra TRF:
3130 base without date, now some later models reported with parachrom.
3131 parachrom
3132 parachrom and paraflex shock system
3135 base with date
3135 Subc parachrom
3136 parachrom bleu and paraflex shock system
3155 base with date & day
3156 parachrom bleu and paraflex shock system
3185 base with date and GMT function
3186 parachrom bleu
3187 parachrom and paraflex shock system
4130 Chronograph Parachom started 2000 but then a more grey colour now parachrom bleu which is done by some chemical prosses to turn it blue
4160 parachrom not sure if it has paraflex too.
9001 parachrom not sure if it has paraflex too.
Det fremgår også at verket (3136) er litt større, og at det derfor ikke benyttes i eks sub.
Og en oversikt over hvilke verk i hvilken modell:
http://www.bobswatches.com/rolex-blog/rolex-info/discussion-rolex-movements-going-back-1950.html