gee_cee
路Explorer II in the early executions are not GMT. Fixed bezels and 24 hour hand is locked to the 12 hour hand.
Unless I'm massively wrong the 24 is not a GMT on the early ones.
This.
The 1655 has a non-adjustable (so not GMT) 24hr function, via the bright orange hand, which tracks once around the dial following the 24hr markers on the bezel. Designed for cave explorers of course. The original 'Rolex Troglodyte'.