Seiko Cal. 4539 - 284

This Spring Drive model from 1972 features a 44mm Gold-Plated case. With its 20mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-b21ca7990042]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1972

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