Sea-Dweller 16660 Matte Mark 1

Ref. 16660 Matte MK1

The Sea-Dweller 16660 'Triple Six' was the first Sea-Dweller to be fitted with a sapphire glass. The first series used matte dials (divided in Mark 1 and Mark 2 variants) while the second series used the newer gloss dials. It was replaced by the 16600 in 1988. The present watch has a Mark 1 matte dial, most easily identified by the base of the 'F' in 'Feet' reaching to the 'E' of 'Superlative'. On the Mark 2, the base reaches to the 'V'.

Release year

1980

Case diameter

40 mm

Thickness

14.8 mm

Lug width

20 mm

Water resistance

1220 m

Case material

Stainless Steel

Crystal

Sapphire

Dial

Black

Movement

Rolex caliber 3035

Movement type

Automatic

Display

Analog

Power reserve

50 h

Frequency

28800 vph

Jewels

27

Movement diameter

28.5 mm

Complications

Chronometer, Date, Hours, Minutes, Seconds