Seiko Cal. 3877 - 764

The Seiko 3877-764 represents an important milestone in Seiko's 1980 lineup. With its 22mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-ee08143bcaa1]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1980

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