Seiko Cal. 6688 - 435

This Automatic model from 1969 features a 46mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-e27b219aff26]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1969

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