Seiko Cal. 3813 - 159

The Seiko 3813-159 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-bb29bc285f72]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1986

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