Seiko Cal. 5284 - 518

The 5284-518 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5284 caliber with 18j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-9455ee26eeb7]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1967

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