Seiko Cal. 5644 - 290

The Seiko 5644-290 represents an important milestone in Seiko's 1995 lineup. Powered by the 5644 caliber with 25j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-f2bc03bb0617]

Also known as: UFO, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1995

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