Rolex “Disco dial” Explorer II model 1655
Rolex “Disco Dial” Explorer II, model 1655. A rare model, made for speleologists ( cave-explorers ). Note the large, orange 24-hour hand and original, plain seconds hand without a luminous dot. Despite its confusing dial, this is a very collectible watch today. The bezel would appear to have been replaced later during service by Rolex.