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Someones got one with an oil filled mod up for sale:

https://www.ebay.co.uk/itm/NEW-Timex-Q-Watch-1979-Reissue-Hydro-Modded-Oil-Filled-ONE-OF-A-KIND/264521898619

That's because the modern diver is a very bloated chap.

These are going to be so cheap in a few months time, I predict ebay awash with them at £90-100.

Wait a year and there will be loads of these knocking around at £100 or so, I'm sure they are being bought up by speculators.