Looks authentic to me in decent condition. For reference of course you can check Chuck
chronomaddox.
The case has been polished. Other than that other looks fine. I've seen this reference sold from USD 1500 to USD 2000 depending on the condition in the past year.
Its movement is controversial: some love it , some hate it. Usually because the plastic parts inside it.
Oh....and people called this reference Mark 4.5 (caliber 1045 without Mark script in dial) compare to the real Mark 4 (with script in dial and Cal 1040).
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