Seiko Cal. 5230 - 851

The Seiko 5230-851 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-419628d32a4a]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1975

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