Seiko Cal. 3871 - 143

Seiko 3871-143

This Spring Drive model from 1972 features a 39mm Gold-Plated case. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-af21468b3e6f]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
12.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Green
Jewels
25j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1972

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seikata-wm-af21468b3e6f