Seiko Cal. 5631 - 368

The Seiko 5631-368 represents an important milestone in Seiko's 1997 lineup. Powered by the 5631 caliber with 24j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-86a6bae7a0b8]

Also known as: Rally, Navigator

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1997

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