Seiko Cal. 4522 - 840

The Seiko 4522-840 represents an important milestone in Seiko's 1967 lineup. With its 18mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-a2c6add462ae]

Also known as: Sumo, Pogue

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1967

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