Seiko Cal. 4533 - 331

The Seiko 4533-331 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-6c2fc29dd65d]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1970

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