Seiko Cal. 6178 - 721

This Hand-Winding model from 1969 features a 37mm PVD Black case. With its 19mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-18b1a87efbb8]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1969

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