Seiko Cal. 3871 - 113

Released in 1972, the Cal. 3871 with design code 113 was part of Seiko's domestic market collection. With its 20mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-61adb41dbc16]

Also known as: Sumo, Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1972

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