Seiko Cal. 4521 - 912

This Quartz model from 1990 features a 37mm Stainless Steel case. It features a Navy dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-6c8c7fc5da7f]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1990

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