Seiko Cal. 4590 - 928

The Seiko 4590-928 represents an important milestone in Seiko's 1981 lineup. Powered by the 4590 caliber with 31j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-1002a611805d]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1981

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