Seiko Cal. 4587 - 369

The 4587-369 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4587 caliber with 30j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-a12117bd7521]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1986

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