Seiko Cal. 4591 - 990

The Seiko 4591-990 represents an important milestone in Seiko's 1990 lineup. Powered by the 4591 caliber with 28j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-e6855bca33c1]

Also known as: Bellmatic, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1990

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