Seiko Cal. 5270 - 242

The Seiko 5270-242 represents an important milestone in Seiko's 1978 lineup. Powered by the 5270 caliber with 24j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-474fc2d0ad8b]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1978

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