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Old 7 January 2018, 08:23 PM   #125
hammywatch
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Join Date: Nov 2017
Real Name: Calvin
Location: Singapore
Watch: 16750
Posts: 25
Couple of questions for fellow 16700 lovers:

Anyone knows when was the last batch of tritium dial on the U series? As I know the late U series have are Swiss only dial and early U series that are tritium dial. Puzzled when was the cut off timing.

Also, what are the factors needed to develop the patina? Does it form naturally as it age.

I have recently seen a 1996 16700 at a shop, patina had developed and there are some dust specks which looks like paint particles on the dial. Should anyone be too bothered by it to get it removed or should one just leave it alone?

Lastly, will U series watches which are around 20 years old have patina already developed or, longer time is required before one can see it occurring?

Thank you all for your time!


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