Seiko Cal. 5618 - 378

The Seiko 5618-378 represents an important milestone in Seiko's 1973 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-efc6ca1daa40]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1973

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