Seiko Cal. 3877 - 615

The Seiko 3877-615 represents an important milestone in Seiko's 1982 lineup. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-52afc4439624]

Also known as: Helmet, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1982

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