Seiko Cal. 4491 - 791

This Automatic model from 1974 features a 42mm Hardlex-Coated Steel case. Powered by the 4491 caliber with 24j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-1d016906fd4b]

Also known as: UFO, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1974

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