Seiko Cal. 3877 - 237

The Seiko 3877-237 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-623776d7bbdc]

Also known as: Navigator, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1969

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