Seiko Cal. 6651 - 831

This Spring Drive model from 1998 features a 46mm Stainless Steel case. It features a Green dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-6d6acf9798e4]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1998

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