Seiko Cal. 4491 - 598

Released in 1970, the Cal. 4491 with design code 598 was part of Seiko's domestic market collection. With its 21mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-d009fa46fb60]

Also known as: Helmet, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1970

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