Seiko Cal. 5631 - 608

This Hand-Winding model from 1993 features a 37mm Two-Tone case. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-d524566773b1]

Also known as: Rally, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1993

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