Seiko Cal. 3815 - 533

The Seiko 3815-533 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d43661de561e]

Also known as: Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1973

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