Seiko Cal. 5284 - 231

Released in 1988, the Cal. 5284 with design code 231 was part of Seiko's domestic market collection. Powered by the 5284 caliber with 34j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-692124a6fba8]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1988

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