Seiko Cal. 3850 - 512

This Spring Drive model from 1981 features a 38mm Two-Tone case. With its 19mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-e332bb745fe4]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1981

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