Seiko Cal. 5631 - 383

The 5631-383 is a sought-after Quartz piece from Seiko's golden era. With its 22mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-a31ccb3fd6fa]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1991

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