Any guesses as to age?

[AndyK]

A local jewelry store has a pre-owned Explorer II with a T - < 25 dial, some patina on the markers, and the older "plain" clasp without the brick look. Unfortunately I was in a hurry and didn't want to wait for the watchmaker to remove the bracelet to see the serial number. I know the T - < 25 dial was used for quite a while through the mid '90s, but I'm curious to know when the bracelet changed?

If it's still there on Friday I may go back for it, since they are giving away an iPad 2 with any purchase over $2500. They were asking $2999, which could be pretty reasonable depending on the age.

Thanks!