Seiko Cal. 4422 - 637

The 4422-637 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-0019dce2ef72]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1967

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