Seiko Cal. 6331 - 565

This Spring Drive model from 1976 features a 40mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-4eb967c08f81]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1976

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