Very curious about your input. Told by an individual who makes his living full time from vintage watches that the omega 53 is a mechanically better watch than the iwc mk11( HE DOESN'T SELL VINTAGE OMEGAS ) Just surprised, Bob.

I want to learn something about this watch and was hoping for some info and a good reference source.

do you have a detailed reference source on it?

Not really military but an interesting piece of history. How does it stack up as a watch. Cheers, Bob.

Sorry, but when I purchased watch the picture was removed. Looks just like your #4 except no circle t, a thin arrow instead. Believe it is a redial variant.

addendum picture has been removed

Have you seen a thin arrow without a hooked 7 and no circle t ? Watch picture on ebay omega53 fat arrow. : Regards, Bob.

ss white dial nd black leather strap watch can be seen on the James Dowling watches for sale site

Does $6500 sound reasonable for a 1958 no date ingenieur in good condition Bob.

presumably, this lovely JLC has been sold. Bob.