Seiko Cal. 4521 - 738

The Seiko 4521-738 represents an important milestone in Seiko's 1984 lineup. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-1734a4db88be]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1984

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