Seiko Cal. 4538 - 184

The Seiko 4538-184 represents an important milestone in Seiko's 1970 lineup. With its 18mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-c169bc7d19dc]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1970

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