Seiko Cal. 6131 - 410

This Spring Drive model from 1996 features a 40mm Stainless Steel case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-57325cf2da7d]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1996

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