Seiko Cal. 7188 - 143

This Quartz model from 1986 features a 36mm Titanium case. It features a Black dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-3baca26ccb6f]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1986

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