Seiko Cal. 5633 - 104

This Quartz model from 1967 features a 37mm Two-Tone case. With its 18mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-89171841ba5e]

Also known as: Bullhead, Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1967

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