Seiko Cal. 4538 - 569

This Spring Drive model from 1970 features a 38mm Two-Tone case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-be2e887e710a]

Also known as: Monster, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1970

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