bo
35
a "T dial"
is one in which the numerals and indices are made from a compound that contains tritium, a slightly radioactive and luminescent material. They're very desirable amongst collectors, and A series Panerai had tritium dials. There were also a number of B series watches released with T dials, and these are commonly referred to as BT watches, for B series, Tritium dial.
Panerai began replacing tritium dials with Luminova (a non-toxic, non-radioactive photosensitive compound) starting with the B series. There are numerous and notable exceptions to this rule, but the 233, for example, is Luminova.
The 28B has a Clous de Paris, or "hobnail" dial - hence your allusion to gridlines, I believe.
Hope this helpful.
bo This message has been edited by bo on 2008-05-07 02:13:52
two completely different pieces
a "T dial"
Correct, Bo, but a T dial is also
