Seiko Cal. 5284 - 312

The 5284-312 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5284 caliber with 29j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-d059e56a0506]

Also known as: Bellmatic, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1987

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