Seiko Cal. 0730 - 242

The Seiko 0730-242 represents an important milestone in Seiko's 1969 lineup. Powered by the 0730 caliber with 21j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-3f7337f2a084]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

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