Seiko Cal. 5660 - 306

The Seiko 5660-306 represents an important milestone in Seiko's 1980 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-48fc982ffa4c]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1980

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