Seiko Cal. 6178 - 188

This Quartz model from 1985 features a 40mm Titanium case. With its 21mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-414d8f5efe6e]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1985

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