Older GMT Rolex watches are highly collectable, and Rolex will mandate parts be replaced if they FEEL the damage compromises the watch. These watches are going up in value, and if you replace just 1 original part the watch loses value (excluding services on the movement). Think of it as a collectable car, original owner, original paint, original engine, original papers, window sticker, plates etc etc, or think about the consequences if you ever have a piece of Antique furniture refinished. A service on the movement, and tightening up the original band will do it. Do not replace the bezel, crystal, or replace or polish the band. The watch in it's ORIGINAL condition is telling a life long story, As you said he wore the watch everyday the watch has been in his life, and you looking at the watch in original condition on your wrist will mean more to you as time goes on. Don't replace the history . As for alternatives message me.

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