Seiko Cal. 5281 - 100

Released in 1989, the Cal. 5281 with design code 100 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-06670f4f367e]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1989

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