Seiko Cal. 3873 - 121

The Seiko 3873-121 represents an important milestone in Seiko's 1988 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-5a355d734369]

Also known as: Bullhead, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1988

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