Seiko Cal. 6388 - 274

This Quartz model from 1975 features a 37mm PVD Black case. With its 19mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-d5264ca59b9b]

Also known as: Monster, Bellmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1975

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