1979 Rolex Explorer II MK 4 Pumpkin Lume (Ref. 1655) Strap: Rubber strap shows signs

Strap: Rubber strap shows signs of wear consistent with use

and D serials had the "Jumbo" designation

the case has warmth without feeling flashy

Strap/Bracelet: Leather strap showing normal wear from age and use

The larger lume plots give the watch more presence without changing the overall proportions

1979 Rolex Explorer II MK 4 Pumpkin Lume (Ref. 1655) Strap: Rubber strap shows signsWorth A Read History and Significance The Rolex Explorer II reference 1655 occupies a unique place in Rolex history. Introduced in the early 1970s, it was designed as a practical instrument for spelunkers, cave explorers, and professionals working in environments where distinguishing day from night was essential. Unlike later Explorer II references, the 1655 relies on its fixed 24 hour bezel and oversized orange GMT hand rather than an independently