Seiko Cal. 3863 - 502

The Seiko 3863-502 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-43b4a0c720f9]

Also known as: Sumo, Rally

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1975

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