Seiko Cal. 4590 - 375

The Seiko 4590-375 represents an important milestone in Seiko's 1983 lineup. Powered by the 4590 caliber with 32j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-8910575e3f3e]

Also known as: Tuna, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1983

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