Seiko Cal. 5631 - 810

The Seiko 5631-810 represents an important milestone in Seiko's 1998 lineup. Powered by the 5631 caliber with 22j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-d0f6ab523cf3]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1998

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