Seiko Cal. 6131 - 350

This Spring Drive model from 1970 features a 37mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-04cec2d12a56]

Also known as: Monster, Pogue

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1970

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