Seiko Cal. 4491 - 323

This Hand-Winding model from 1970 features a 40mm Hardlex-Coated Steel case. Powered by the 4491 caliber with 17j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-abe4cef91328]

Also known as: Samurai, Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1970

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