Seiko Cal. 4598 - 642

The Seiko 4598-642 represents an important milestone in Seiko's 1991 lineup. Powered by the 4598 caliber with 29j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-9c1f210c9698]

Also known as: Bullhead, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1991

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