Hobby Bot

Rolex 16660

Sea-Dweller

Triple Six
1978 –1989

What Should You Pay?

Estimated fair market values. Actual prices vary by condition, completeness, and seller.

New / Like New / Full Kit
$12,016 – $13,825
low confidence
Excellent / Pre-Owned
$10,634 – $12,235
low confidence
Used / Watch Only
$9,358 – $10,766
low confidence
Fair Market Value
$11,434
Blended estimate for excellent condition
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The Rolex Sea-Dweller 16660, known as the 'Triple Six', represented a significant upgrade to the Sea-Dweller line with the introduction of a sapphire crystal and unidirectional bezel. It featured an improved helium escape valve and greater depth rating compared to its predecessor, establishing itself as a professional diving watch suitable for saturation diving.

Specifications
Case Diameter 40 mm
Case Height 17 mm
Case Material stainless steel
Case Shape round
Case Back screw_down
Lug Width 20 mm
Water Resistance 1220m
Crystal sapphire
Bezel Type rotating_unidirectional
Bezel Material stainless steel
Dial Color black
Dial Indexes applied
Dial Hands mercedes
Bracelet/Strap oyster
Bracelet Material stainless steel
Clasp fold_over
Complications date
Movement
Movement Calibre 3035
Type automatic
Power Reserve 42 hours
Frequency 28,800 vph
Jewels 27
Certification COSC
Functions hours, minutes, seconds, date

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