Seiko Cal. 5220 - 228

The 5220-228 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4fb3dc76302f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1985

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