As the inaugural Sea-Dweller to utilize sapphire glass, the 'Triple Six' 16660 was produced in two series, starting with matte dials (Mark 1 and 2) and moving to gloss dials. The model was superseded by the 16600 in 1988. This particular watch is equipped with a gloss dial.
Movement Type
Automatic
Caliber
3035Jewels
27
Reserve
50
Frequency
28800
Hands
Center Seconds
Shape
Round
Lug Distance
20.00 mm
Material
Stainless Steel
Glass
Sapphire
Thickness
14.80 mm
Diameter
40.00 mm
Water Resistance
1220.00 m
Dial Color
Black