Seiko Cal. 4521 - 493

The Seiko 4521-493 represents an important milestone in Seiko's 1965 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-6a47f94dd0f4]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1965

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