Seiko Cal. 3857 - 830

This Hand-Winding model from 1989 features a 37mm Stainless Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-cf9803a84d86]

Also known as: Monster, UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1989

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