Seiko Cal. 4490 - 694

The Seiko 4490-694 represents an important milestone in Seiko's 1979 lineup. Powered by the 4490 caliber with 30j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-dfcfa3b19f6d]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1979

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