Seiko Cal. 5240 - 410

Released in 1976, the Cal. 5240 with design code 410 was part of Seiko's domestic market collection. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-10bc113dd7ce]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1976

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