Rolex · Model Reference
Rolex Sea-Dweller
A professional saturation-diving watch developed beyond the depth limits of the Submariner.
Launch1967
Reference126600 / reference dependent
TypeProfessional dive watch
Case43 mm current reference
Market Pricing · July 2026
Price guide.
What affects value
Exact reference, metal, dial, bracelet, production year, condition, service history, completeness and originality of major components.
Indicative European market ranges in EUR. Exact value depends on reference, configuration, condition, originality, service history, completeness and current demand. This is editorial guidance, not a purchase offer or investment advice.
Model story.
The Sea-Dweller evolved for professional deep-sea use and introduced a helium escape valve for saturation diving.
Movement
Automatic Rolex calibre 3235
Water resistance
1,220 metres on current standard model
Production status
Current and historic references
Collector note
Vintage matte dials and correct case proportions are highly important.
Buyer guide.
Inspect helium valve, bezel, crown, bracelet, pressure-test history and originality.
TimeHunter Insight
For buyers who value professional purpose and heavier wrist presence.