Seiko Cal. 4478 - 593

This Spring Drive model from 1989 features a 36mm Stainless Steel case. Powered by the 4478 caliber with 17j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-31843a039557]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1989

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