Seiko Cal. 5639 - 726

The Seiko 5639-726 represents an important milestone in Seiko's 1991 lineup. Powered by the 5639 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-e7f62c5441ca]

Also known as: Pogue, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1991

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