Seiko Cal. 3871 - 220

The 3871-220 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-8dfbdf6bc8c8]

Also known as: Monster, Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1985

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