Seiko Cal. 6240 - 487

The Seiko 6240-487 represents an important milestone in Seiko's 1977 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-b9540a02ef91]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1977

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