Seiko Cal. 3820 - 560

The 3820-560 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-f2bb1d52da60]

Also known as: Navigator, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1980

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