Seiko Cal. 5631 - 183

The 5631-183 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5631 caliber with 32j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-b1cc2d4b1cde]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1997

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