Seiko Cal. 3864 - 448

The Seiko 3864-448 represents an important milestone in Seiko's 1973 lineup. Powered by the 3864 caliber with 30j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-3be4cc22f98e]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1973

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