Seiko Cal. 4491 - 397

This Automatic model from 1973 features a 41mm Hardlex-Coated Steel case. Powered by the 4491 caliber with 35j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-0e9c64705cb8]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1973

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