Seiko Cal. 5221 - 412

The 5221-412 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-af1d93ae9d7f]

Also known as: Shogun, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

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