Seiko Cal. 3840 - 490

This Kinetic model from 1970 features a 37mm Hardlex-Coated Steel case. Powered by the 3840 caliber with 22j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-9a0d669e5cd2]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1970

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