Seiko Cal. 6378 - 581

The Seiko 6378-581 represents an important milestone in Seiko's 1977 lineup. It features a Silver dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-d5983cf73928]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1977

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