Seiko Cal. 6397 - 684

This Quartz model from 1977 features a 46mm Titanium case. It features a White dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-671344e942f3]

Also known as: Monster, Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1977

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