Seiko Cal. 5631 - 366

The Seiko 5631-366 represents an important milestone in Seiko's 1994 lineup. Powered by the 5631 caliber with 25j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-b1babdbe75ae]

Also known as: Samurai, World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1994

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