Seiko Cal. 5673 - 491

The Seiko 5673-491 represents an important milestone in Seiko's 1977 lineup. Powered by the 5673 caliber with 31j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-0bc3171b5a7a]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1977

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