Seiko Cal. 5623 - 509

The Seiko 5623-509 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-7bbfe9174ddc]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1975

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