Seiko Cal. 3813 - 430

The Seiko 3813-430 represents an important milestone in Seiko's 1987 lineup. Powered by the 3813 caliber with 24j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-5af4ab4e81be]

Also known as: Monster, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1987

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