Seiko Cal. 3873 - 891

The Seiko 3873-891 represents an important milestone in Seiko's 1976 lineup. Powered by the 3873 caliber with 36j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-beaaa32003b9]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1976

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