Seiko Cal. 4546 - 188

The Seiko 4546-188 represents an important milestone in Seiko's 1974 lineup. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-2cf3d72f08a5]

Also known as: Sumo, UFO

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1974

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