Seiko Cal. 3863 - 900

The Seiko 3863-900 represents an important milestone in Seiko's 1970 lineup. Powered by the 3863 caliber with 34j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-beda6311849e]

Also known as: Rally, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1970

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