Seiko Cal. 3871 - 978

Seiko 3871-978

The 3871-978 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-2cb510f7893b]

Also known as: Turtle, World Timer

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
44mm
Case Thickness
14.8mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
120m
Dial Color
Navy
Jewels
34j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1985

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