Seiko Cal. 6331 - 538

This Quartz model from 1968 features a 36mm Titanium case. It features a Cream dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-846419f2b88c]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1968

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