Seiko Cal. 5621 - 303

This Spring Drive model from 1992 features a 38mm PVD Black case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-e7eb0531e526]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1992

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