Seiko Cal. 5631 - 161

The 5631-161 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-7181810ae477]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1987

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