sub question

[brianflemm]

What does "SWISS -T<25" mean?

On the dial of a sub that I have not seen before. Same spot that would normally say "SWISS MADE"

thanks

[The GMT Master]

This is on an older Sub (pre-1999), and it indicates that it uses Tritium (a radioactive agent) in the luminous hands and markers. On other Rolex watches of the same kind of age, you can find the above on the Sub, or T Swiss T. Swiss Made indicates that it uses Superluminova in the luminous hands and markers

Chris

[caeden]

T SWISS MADE T indicates that the radioactive material Tritium is present on the wristwatch. The amount of radioactive material emitted is limited to a maximum of 25 milliCurie.

SWISS T < 25 more specifically indicates that the wristwatch emits an amount of Tritium that is less than the 25 milliCurie limit.

SWISS T 25 indicates that the wristwatch emits the maximum allowable amount of Tritium (i.e. a full 25 milliCurie).

SWISS (or) SWISS MADE on wristwatches produced after (around) 1998, indicates the presence of LumiNova as the luminous material. (Please Note: "SWISS" or "SWISS MADE" was also the indication on wristwatches produced prior to the 1950s, when Radium was used as the luminous material. However, at that time "SWISS" or "SWISS MADE" simply indicated that the watch was, in fact, made in Switzerland.


Taken from http://www.qualitytyme.net/pages/rolex_faqs.html

Hope this helps!

[brianflemm]

Thanks gentlemen

[Tools]

I just don't know why you guys search all over for stuff that is right here on TRF..

We have some great information on Lume and Luminova/Tritium over in our Reference Library............