Seiko Cal. 3894 - 420

Seiko 3894-420

The 3894-420 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-c7d86bd59798]

Also known as: World Timer

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
35mm
Case Thickness
15.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Green
Jewels
22j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1969

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