Seiko Cal. 5242 - 535

The Seiko 5242-535 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-f2389b1f4ab3]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1971

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