Seiko Cal. 6231 - 357

This Spring Drive model from 1999 features a 43mm Gold-Plated case. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-b94404c8544b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1999

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