Seiko Cal. 4521 - 301

The 4521-301 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-0d5a6fd439c8]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1989

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