Seiko Cal. 4598 - 256

The Seiko 4598-256 represents an important milestone in Seiko's 1991 lineup. Powered by the 4598 caliber with 22j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-a234f2f4f245]

Also known as: Sumo, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1991

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