Seiko Cal. 6660 - 665

The Seiko 6660-665 represents an important milestone in Seiko's 1987 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-b1cf80eca548]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1987

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