Seiko Cal. 5631 - 471

Released in 1977, the Cal. 5631 with design code 471 was part of Seiko's domestic market collection. With its 19mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-242fa77bcc99]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1977

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