Seiko Cal. 3871 - 301

Released in 1968, the Cal. 3871 with design code 301 was part of Seiko's domestic market collection. With its 19mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-498edfaf7eba]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1968

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