Seiko Cal. 4451 - 665

This Spring Drive model from 1982 features a 42mm PVD Black case. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d4a0ef631606]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1982

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