Seiko Cal. 0777 - 664

The Seiko 0777-664 represents an important milestone in Seiko's 1974 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-390ed65bffb2]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1974

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