Seiko Cal. 5631 - 170

The 5631-170 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-baedf61e563e]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1976

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