Seiko Cal. 3871 - 150

The 3871-150 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-b6730d6e63e2]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1980

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