Seiko Cal. 4491 - 791

Seiko 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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