Seiko Cal. 4521 - 324

This Automatic model from 1975 features a 37mm Stainless Steel case. It features a Silver dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-5a832967a2d5]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1975

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