Seiko Cal. 3810 - 540

This Spring Drive model from 1982 features a 43mm Hardlex-Coated Steel case. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-eadb58cd27d5]

Also known as: Samurai, Shogun

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1982

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