Seiko Cal. 6131 - 281

This Spring Drive model from 1986 features a 37mm Titanium case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-80fab061ddc8]

Also known as: Samurai, Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1986

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