Movado SE Pilot Black Dial Stainless Steel Chronograph Men's Watch 0606759

Advice on a vintage Seamaster
So, I came across this watch on eBay. Seller has no reserve, no idea what it is beyond the fact that it's an Omega Seamaster Cosmic. Through my friend the Omega Vintage Database, I have determined that this is the watch:SEAMASTER - COSMICGENTS' LEATHER STRAPReferenceLD 166.0036International collection1967MovementType: Automatic (mechanical)Caliber number: 752Created in 196724 jewelsCentral sweep-second handFunctionsDay-dateCaseGold-platedCase backUnishell (case opening on dial side)Full metalDialMetal, with luminous metal handsCrystalArmoured hesaliteBraceletLeatherWater resistance30 metersSo my question to you guys would be, what would be a fair winning bid for this watch, sans band and with a small ding on the dial? I won't be bidding on it until the end so as to not drive up the price, if at all.I look forward to your comments and/or suggestions.

How do I remove links in a Movado Valor?
I tried using a push pin but it won't budge. I even emailed Movado and they said to take it to a jeweler. Help?!?

Does the caliber 23-300 has overwind protection?
The 23-300 is obviously a manual wind caliber and on my 2593 the crown is so small and also a bit recessed in the case that is is quite hard to wind. Hence I usually only wind it a few turns just to keep it running. A few times I have tried to wind it fully though but I always have to stop as my fingers get numb (it also takes quite a force to wind). I have wound it as much as it should be fully wound comparing to other calibers but the spring does not tighten. Does the 23-300 have an overwind protection that makes the mainspring slip in the barrel like automatic movements have?

5146 update?
I've decided to purchase both a 5711/1A and a 5146G (creme), though plan to space out the purchases to spread out the cost and to appreciate/savor each individually.I'm itching for a 5146, but what gives me pause is that it has been out for a while so could be due for an update. If it will be updated in a year or two, I'd love to be able to decide between the two versions rather than regret having bought the old version recently.Therefore, I'm leaning towards getting the 5711 and waiting on the 5146, but would appreciate any thoughts, particularly on the likely update cycle for the 5146.

Another poll..
You guys know about my dilemma on my previous thread (5270G + 5711P or 5131G or 5070P)Now I've pretty much made my mind that I'll get the 5131G if I can't find the 5711P.The thing is, I have found the 6102P Celestial in my dealer here. I'll go check it out this week. I'm pretty sure I'll like it in person too since I've been admiring to it on photos for a very long time.So, my question is, the combination of the first possibility (5270G + one of the other references I mentioned on my previous post) vs the 6102P costs about the same to me.One thing about 5270G is I have been wanting it since I first started collecting, another thing is now it's being discontinued while 6102P is still in production.Please tell me your opinions,Salih