With most design hints taken from the vintage, the Submersible is the most heavily-built regular Panerai. The basic Luminor case gains a heavy, milled unidirectional bezel. The hands are skeleton, as in the GMT.
The Submersible is an automatic watch, with small seconds at 9 and a date window at 3. It uses the OP III movement.
It might seem that the Submersible is, after the Luminor Base and Marina, the most stable design of the Panerai range, however it should be noted that for D series production there were a few subtle changes to the design in that the bezel is now, and ratchets at one minute rather than five minute intervals. These design hints are probably taken from the 1000m Submersible. Also for the D series the bezel on the steel model is brushed, in contrast to the rest of the polished case.
The hatch marks present on later bezels are not painted in on the F
series PAM 170, which otherwise only differs from the 106 in its use of polishing
versus brushing on steel parts.
For the D series (2002) Panerai added a bracelet variant to the submersible line, the PAM 106. In common with all 44mm bracelet models, the bezel is steel and the case is titanium (instead of an all-steel construction). The bracelet is also the 44mm standard titanium steel mix.
Over the years, production numbers have been broken out differently, sometimes listing separate metals, sometimes listing the bracelet versus strap watches.
|PAM 24||Steel 44mm Luminor Submersible||Black||Strap||A onwards|
|PAM 25||Titanium 44mm Luminor Submersible||Black hobnail||Strap||A onwards|
|PAM 106||Brushed titanium 44mm Luminor Submersible, with brushed steel bezel||Anthracite||Bracelet: alternating brushed Ti and brushed steel links.||D - F|
|PAM 170||Brushed titanium 44mm Luminor Submersible, with polished steel bezel||Anthracite||Bracelet: alternating brushed Ti and polished steel links.||F - G|