Seiko Cal. 4521 - 303

The Seiko 4521-303 represents an important milestone in Seiko's 1980 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-65ee666ff31f]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1980

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