Seiko Cal. 3877 - 700

The Seiko 3877-700 represents an important milestone in Seiko's 1973 lineup. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-7998cf210ef7]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1973

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