Seiko Cal. 4522 - 740

The 4522-740 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-79bc9ea5c247]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1985

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