Seiko Cal. 5674 - 681

The Seiko 5674-681 represents an important milestone in Seiko's 1971 lineup. Powered by the 5674 caliber with 29j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-bdf49d7d2fc4]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1971

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