Seiko Cal. 4591 - 993

The Seiko 4591-993 represents an important milestone in Seiko's 1988 lineup. Powered by the 4591 caliber with 23j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-b2bd2be39058]

Also known as: World Timer, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1988

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