Seiko Cal. 0741 - 507

The Seiko 0741-507 represents an important milestone in Seiko's 1979 lineup. Powered by the 0741 caliber with 20j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-8ff01b1d9930]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1979

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