Seiko Cal. 4427 - 350

The 4427-350 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-edb32432ae90]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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