Seiko Cal. 6178 - 581

The Seiko 6178-581 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c31863ba82f4]

Also known as: Samurai, Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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