Seiko Cal. 5681 - 900

The Seiko 5681-900 represents an important milestone in Seiko's 1985 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-c79f5b3b1ffe]

Also known as: Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1985

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