Seiko Cal. 3877 - 828

The Seiko 3877-828 represents an important milestone in Seiko's 1970 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-08ea81a4a2a4]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1970

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