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Rolex Sea-Dweller 16660 “Triple Six”

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Where to buy Rolex Sea-Dweller 16660 “Triple Six”
Links open the retailer's current listings. Always check seller feedback, authenticity guarantees and return policy.

The Triple Six raised the Sea-Dweller’s rating to 1,220 m and added a sapphire crystal and a helium escape valve. Early “matte” dials are more valuable than later glossy ones.

Who it’s for

Divers and tool-watch fans who want something more serious than a Submariner.

Buying tips

  • Make sure the helium escape valve and caseback are original and the case hasn’t been over-polished.
  • Service history matters on a deep-rated watch. Ask when it was last pressure-tested.
  • Compare prices with the equivalent Submariner. Sea-Dwellers are often better value.
Specifications
BrandRolex
Reference16660
Case size40 mm
Case materialStainless steel, aluminum bezel insert
MovementAutomatic, Rolex 3035
Power reserveAbout 42 hours
Water resistance1,220 m
CrystalSapphire
Production1978 – 1988
Typical market pricearound $12,000 (estimate; see tracked prices)

Rolex Sea-Dweller 16660 “Triple Six” price history

Price tracking started. We record market prices for this watch every day. The chart appears once we have enough data points.

How we measure: eBay figures are the median of matching US listings after removing accessories, parts and statistical outliers. "Asking" means listed prices; "sold" means completed sales. Retailer prices are spot checks. Prices change constantly; confirm on the retailer's site.

Where to buy Rolex Sea-Dweller 16660 “Triple Six”
Links open the retailer's current listings. Always check seller feedback, authenticity guarantees and return policy.

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