Seiko Cal. 3821 - 161

The Seiko 3821-161 represents an important milestone in Seiko's 1981 lineup. Powered by the 3821 caliber with 17j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-76b7eafa948b]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1981

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