Seiko Cal. 6178 - 431

This Quartz model from 1975 features a 45mm PVD Black case. Powered by the 6178 caliber with 19j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-9c97fae22c1e]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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