Seiko Cal. 3813 - 654

This Automatic model from 1979 features a 36mm Stainless Steel case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-812bcda953aa]

Also known as: Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1979

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