Now some questions regarding tritium now.
Does all tritium age and will turn patina?
How come some rolex with tritium from year 1998 already aged and some hasn't at all?
How long on average the tritium will start aging?
Some subs are saying 12 links is full links... Some says 13. So which one is full?
hanz079,
There are lots of reasons why some Tritium dial have patina and others don't. Until today, there is no conclusive answer. Patina or not is dependent on the following factors (arguments still raging):
Temperature
Light
Varnish
Quality of Tritium
Etc
However, based on my experience, and some others, patina tends to develop more on watches that are stored away from sunlight. It is believed that sunlight (UV?) will bleach the tritium, hence no or little patina (note, this fact is still being discussed).
I have a NIB Panarai PAM00243I that has been a safe queen and the patina is just awesome. I also have a GMT Master that does not see the light of day (not much any way) and that has a lovely patina. I also had (sigh) a Revue Thommen which I got NOS from a store (inside a building, away from sunlight) and that had a lovely patina. I also have an Omega Seamaster Chrono that has a beautiful patina (last seen the light of day 10 years ago). I also just got a set of tritium hands for my Tudor Snowflake that has been kept in a drawer and it has a beautiful patina (which the Tudor does not have, uneven patina, used daily by ex owner).
Like I said, this is based on my personal experience and from what I have read and seen from other collectors. In fact there are friends and owners who have safe queens and the watches have not developed Patina. So it is not an exact science. Some collectors say that if the tritium has started to develop patina, it will continue to develop if kept in the dark. If exposed to the sun, it will slow down or not develop at all.
As for the links on the bracelet, it is 13.