Seiko Cal. 3881 - 621

The Seiko 3881-621 represents an important milestone in Seiko's 1982 lineup. Powered by the 3881 caliber with 25j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-98fca0a2487b]

Also known as: Bullhead, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1982

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