Seiko Cal. 4427 - 223

This Spring Drive model from 1972 features a 35mm Stainless Steel case. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-5924ec45ef68]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1972

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