Manuel,
I replace my 2836-2's with 2846's with a/h of 21600bph. My next project, however, is to fit these Schild's with genuine datewheels-
...which also beat at 21,600bph
Well, the water resistance doesn't come from the pushers being threaded down tight enough, but rather the seals inside. All the screw down pushers do is prevent you from being able to engage the stopwatch function when screwed down.
Must concur with A-
The DW's with the V23 copy movements are aesthetically 97% there as they come (provided DW has included all the right parts, like end links, etc). Only further mods that one could do are the crystal, springbars, and the crown and tube. If you're really picky, you could swap dials, but I don't think it's absolutely necessary.
The only watches I've had serviced are my DW's- One was purchased pre-serviced, and the other was one I sent directly to RG.
On my 2836-2 based MBW vintages, I tend to swap the movements out with slower beat ETAs to better emulate the 19800bph Rolex 1570/5 calibers. Since my replacement movements are brand new, I'll wait to service those.
Out with the old:
In with the new:
Funny how names become associated to things... McQueen 1665, Clapton 1680... PN Daytona. What's even funnier is how many of these associations are incorrect. Mr. Newman, as you mentioned above, wears his black 6263 plain dial, Steve McQueen wore a 5513, and Mr. Clapton...? I've seen a number of different Rolex on his wrist, so I don't know how that one was started (though I believe I had heard that this one was a result of one of his personal red 1680's having sold for a record amount- Is this enough to tie someone's name to in order to create some sort of cache for the brand?).
What's next? The Nanuq 6536?
A great topic of debate and controversy!
The collectors and dealers believe it's the 39 and 41- The movie has nothing to do with it. The true epitome of 'PN' is the very first cosmograph with exotic dial (2 and 3 color variations), pump pushers, etc. The later models with screw down crowns with exotical dial are still called PN, but not the 'true' PN in collector and enthusiasts' eyes.
I think Ziggy's had a change of heart with the new 7750's- Vast improvements have been made, and he has noted an overall improvement in their construction, build and parts quality.
But if it's relating to which is better for a vintage Daytona... I'd take neither. I'll stick with my finicky, unreliable V23 copy movement It might be unreliable, but it's more 'correct' for the watch in terms of appearance and character.
*shrug*
I concur with Kruzer. With Swiss 7750's being of reasonable cost, and Ziggy's excellent service rates, I would rather go the route of getting my own movement retrofit into my case. At least this way, you KNOW that the movement inside is Swiss! And with servicing from Ziggy, you know you're good to go for the first 5 years