Seiko Cal. 4428 - 133

The Seiko 4428-133 represents an important milestone in Seiko's 1970 lineup. With its 19mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-00221d855cd8]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1970

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