The Panerai caliber P.9002 is an in-house automatic watch movement. This caliber has 29 jewels, carries a 3 day power reserve thanks to the two barrels, beats at 28,800, and has 237 components. Featuring a Glucydur balance and Incabloc anti-shock.
In Panerai’s own words:
The P.9002 calibre, created entirely by Officine Panerai and used in a series of Luminor 1950 and Radiomir models, is fitted with various functions: it is an automatic calibre with a 3-day power reserve and a unique technical design which makes this movement immediately recognisable. The calibre has a diameter of 13¾ lignes and numerous features: two barrels which guarantee 72 hours of power reserve; a single piece rotor which winds by moving in both directions thanks to an automatic ratchet device; a balance wheel with adjusting screws, oscillating at a frequency of 4 Hz; a date display and a seconds reset device which resets the seconds hand, enabling the watch to be synchronized perfectly with a reference time signal. To house this movement, a specially made version of the Luminor 1950 case has been designed, keeping the proportions of the original but featuring a slightly less convex sapphire crystal which only barely protrudes from the bezel. The P.9002 is a variant of the P.9001 automatic calibre with several additional features: GMT, or rather a second time zone, indicated by a central hand, seconds reset and power reserve indicator.
Seconds Reset Device:
The P.9002 takes “hacking” to the next level with a convenient seconds reset device. Pulling the crown to setting position automatically resets the seconds to 12:00 and the hand stays hacked until the time is set and crown pushed back in.
Caliber P.9002 Evolution:
The P.9002 has been replaced by the Panerai caliber P.9012. The newer movement has more jewels (31 vs 29) but fewer overall components (231 vs 237). Another big difference between the P9002 and P9012 is that the later is 2mm thinner. Everything else in comparison is basically the same: small seconds at 9, date at 3, power reserve at 4:30.
Examples of watches with the P.9002:
The example pictured below was found in a PAM 347.