Glossary · Case & Dial
Tritium dial
A dial using tritium-activated luminous paint.
Explanation
Often marked with a T on the dial; glow fades as the isotope decays, so old examples usually no longer luminesce strongly.
Glossary · Case & Dial
A dial using tritium-activated luminous paint.
Often marked with a T on the dial; glow fades as the isotope decays, so old examples usually no longer luminesce strongly.