I certainly enjoyed watching your "treasure hunt" FYI I viewed it 2 times -- a record for me.
Two Watches ! Not much of an endorsement of the watch strap holding power ...Can or were they salvageable ?
It reminded me of diving the many California fishing piers- never a dull dive and always another treasure above, below or in front. Fishing lures, fishing lead sinkers and other goodies..
If I may make a suggestion on your bag...
Use a collection bottle ...obtain a gallon bleach bottle, (or 1/2 gallon) cut a 2-to 3 inch star shaped slots in the slanted portion of the bottle. Use a drill, punch or some way make a number of drain holes in the bottom.
No need to fuss with the official dive goodie bag just pick up the object and shove into the precut slots in the bottle. The slots will self seal
Once on shore cut off the top of the bottle to retrieve your treasures.
On your way home visit the local laundry mat for another one gallon bleach bottle-- always a huge supply for the taking .
These collection bottles served me flawless on so many dives over many years -- I suspect they will also for you
Good luck and good diving
Sam Miller, III