Hi, just before saving You more research-time imho don´t hunt for "the PAM that really gets close to a gen", go with the one that You like most for the looks, that goes best with Your style or the one that offers the best value for money.
Why? - "The closest to gen" will not have a seconds hand as it´s a tell, it will not have a date as it´s a possible tell, it will have no caseset engravings as these may be wrong and all open display casebacks are excluded as the movement is not gen, even if it looks close - exaggerating a bit but just to get the idea across
Check out Ale´s PAM-guide, it´s fabulous, here on the forum and quote which You may also thank Ale for as guidance:
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Some clarifications are required
The overall most accurate?
PAM 029 Noob, PAM 292 J Noob
The most accurate in the wrist? (Not in the hand. List increases a lot)
PAM 111-176-177-127-217-029-356-390-088-243 Noob, PAM 292 J noob, PAM 312 KW,PAM 388 KW, PAM 288 H maker
The most gen-like feel appearance?
PAM 417 KW, PAM 388 KW, PAM 312 KW, PAM 346 KW, PAM 359 KW, PAM 505-504 KW, PAM029 Noob, PAM 243 Noob, PAM 390 Noob, PAM 292 J Noob
The nicest one? (this is a taste matter)
PAM 390, PAM 253, PAM 388, PAM 346, PAM 417, PAM 359, PAM 312, PAM 088
I know this is a big list, but I cannot reduce it
ALE"