Seiko Cal. 3871 - 620

Seiko 3871-620

The 3871-620 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3f4aaaf6d48f]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
11.5mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Cream
Jewels
35j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1970

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