Seiko Cal. 5623 - 104

The Seiko 5623-104 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-e42ba58625a0]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1973

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