Seiko Cal. 3821 - 171

The Seiko 3821-171 represents an important milestone in Seiko's 1983 lineup. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-d4a5b97c0b38]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1983

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