for the indices ...

 

Four years and 321 days.

 

I’d have said the same, but then realized it depends when you actually took the images you posted. If you can give me a time as well as a date, then I can be more precise in the answer.

 

We’ll also need to know the expected future exposure to various factors including sunlight/UV, moisture & humidity. etc. The Lot Number and production date of the lume, and date applied to the dial will also be required.

 

Rub liberally with olive oil, salt and pepper. Sear for half hour at 450F then roast for 5 days at 250F.

 

..and voila! Italian style patina!

 

Looks like it may be stuck in that awkward “teenage-patina” forever... Probably should just give it to me and find another one

As other have alluded. There not really a way to calculate it - as numerous factors likely play into the aging process (sun, humidity, tempature, lume, etc).

 

Depends... there are hundreds and hundreds of threads about that on the internet... Some people say it's sunlight, others say it's no-sunlight. Others say it's just lots of time.
I say it's heavy smoking (I am a non-smoker btw... but whenever I see one of those brown dials with "pumpkin patina" I am convinced it used to be a 80 year old heavy smokers watch... ) and lots time...

 

..and some say: storage in a dark place for some years. No idea if thats a myth or not, but this '85 has been in a safe 20 years and is well ahead of the one above

 

Well that is beautiful! I got a matte dial 80s Sub and the pre-owner used to wear it everyday till he died. Tritium dots just slightly yellow.
So: don't wear your watch outside too much - it might get bright dots!!!

 

It’s widely believed that with Rolex, one of the contributing factors to developing rich patina is lack of exposure to sunlight. This is opposite to Speedmasters as differing bonding agents were used in the tritium.

 

Thanks for for the input guys... could take a while I suppose for the formation... by the way, any indicative what’s the going price like currently for this 5512?

Mine is a 200/660 Mk 1 dial--the first version 5512 matte dial offered by Rolex, directly after the end of the gilt dials and I believe is very rare because only produced in approximately the 1.7 - 2 million serial range, hence only for a year or maybe two, after which all 5512s had 660/200 depth rating.

In fact, correct me if I am wrong but considering that the gilt dial 5512 were produced for three or four years, the 200/660 matte is probably rarer than those?

 

It’s a nice watch but do do need to upgrade your potato camera

 

i agree.... give me a little time.... rainy season here in Singapore as well....

 

The bezel edges really can cut!

 

FWIW I just pulled my old Tissot Seastar out of the bottom of a trunk where it sat for 40+ years, the brown patina is amazing (this pic is under fluorescents, the real color is much darker/browner)

 

I think the patina looks good. Why must we have such an idea that the the more yellow the better?

The patina is a unique character, showcasing the life the watch has lead. Just enjoy it and have fun.

 

i just got in a late tritium explorer 2 and have been wondering the same thing

 

FYI the 5512 Bart Simpson gilt dial was used only in 1966.

 

My DRSD was kept in the safe by the late owner for 25 years and this was the result.