Seiko Cal. 3871 - 137

Seiko 3871-137

The 3871-137 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-f04105a470d0]

Also known as: Monster, Rally

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
46mm
Case Thickness
13.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1978

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