Seiko Cal. 5681 - 734

The Seiko 5681-734 represents an important milestone in Seiko's 1986 lineup. Powered by the 5681 caliber with 17j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-691515c19f3b]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1986

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