Seiko Cal. 5623 - 650

This Spring Drive model from 1970 features a 35mm Two-Tone case. With its 22mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-80370ec40bd5]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

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