Seiko Cal. 4491 - 912

This Automatic model from 1972 features a 43mm Hardlex-Coated Steel case. Powered by the 4491 caliber with 35j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-66c7b5d666c8]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1972

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