Seiko Cal. 5631 - 914

This Solar model from 1972 features a 45mm Two-Tone case. With its 18mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-754a9b433266]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1972

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