Seiko Cal. 4591 - 855

The Seiko 4591-855 represents an important milestone in Seiko's 1999 lineup. Powered by the 4591 caliber with 21j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-4249a1d3ba7b]

Also known as: Monster, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1999

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