Seiko Cal. 4455 - 538

This Spring Drive model from 1979 features a 45mm Two-Tone case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-cce25603aba7]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1979

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