Seiko Cal. 5284 - 431

The 5284-431 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5284 caliber with 25j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-acf1ddc2c713]

Also known as: UFO, Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1988

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