Seiko Cal. 4546 - 443

This Spring Drive model from 1979 features a 42mm Titanium case. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-b852bd1bc9fe]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1979

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