Seiko Cal. 4427 - 444

This Spring Drive model from 1965 features a 43mm Stainless Steel case. With its 22mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-becd94d96fb3]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1965

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