Seiko Cal. 6660 - 660

Released in 1977, the Cal. 6660 with design code 660 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-1ea487ba8689]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

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