Seiko Cal. 7138 - 167

This Spring Drive model from 1993 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-1cd6401557de]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1993

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