Seiko Cal. 6131 - 895

This Automatic model from 1981 features a 37mm Two-Tone case. Powered by the 6131 caliber with 36j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-8c3aef27bb26]

Also known as: Shogun, Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1981

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