Seiko Cal. 5240 - 143

The Seiko 5240-143 represents an important milestone in Seiko's 1978 lineup. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-0411c4daf587]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1978

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