Seiko Cal. 6393 - 258

This Spring Drive model from 1983 features a 40mm Stainless Steel case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ec760c076d85]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1983

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