Seiko Cal. 0747 - 731

The Seiko 0747-731 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-ca78ed3a53cb]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1975

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