Seiko Cal. 4487 - 326

The 4487-326 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4487 caliber with 21j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-5a45bb65b1e8]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1990

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