Seiko Cal. 6313 - 338

This Spring Drive model from 1992 features a 37mm Two-Tone case. With its 21mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-4b60cffe9da9]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1992

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