Production volumes are in year

PreA (1997) * 165 produced pieces, Tritium luminous material, Case number:6500,

A 1500* (250 produced only), Tritium luminous material, Case number:6502, ID starts with BB,

B*** 3000* (699), Tritium & Luminova luminous material****, Case number:6518, ID starts with BB,

C 4000** (500), Case number:6518, ID starts with BB,

D (2001) 3500** (500) pieces, Case number:6518, ID starts with BB,

Luminova material from B and later,

*PAM00001, PAM0003 & PAM00004 gathered under the same millesimation,

**PAM00001, PAM00003 & PAM00061 gathered under the same millesimation,

***It seems to exists some B-series with A-series cases and dials,

**** The move from Tritium to Luminova was during production of the B-Series. Until now no exact information by Panerai is known. The view of many Paneristi is:

PreA & A-Series with case number OP6500 & OP6502 had 100% Tritium dials (maybe changed during revision to Luminova)

B-Series with case number OP6518-OP6521 has less than 10% an original Tritium dial (some were flipped by owners from Luminova to Tritium to increase the value of the watch)

C-Series has 100% Luminova dials.

For more information review following website: https://perezcope.com/2017/01/19/panerai-b-series-sought-after-tritum-and-luminova-dials/