Seiko Cal. 6377 - 399

The Seiko 6377-399 represents an important milestone in Seiko's 1977 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-c98d85889ed9]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1977

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