Seiko Cal. 5631 - 976

The 5631-976 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-dc739af70845]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1969

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