Seiko Cal. 3876 - 921

The Seiko 3876-921 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-12be94d010d8]

Also known as: Monster, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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