Seiko Cal. 5631 - 855

The 5631-855 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-643f601df51f]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1992

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