Seiko Cal. 3863 - 724

The Seiko 3863-724 represents an important milestone in Seiko's 1974 lineup. Powered by the 3863 caliber with 31j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-70bf14236893]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1974

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