Seiko Cal. 3863 - 803

The Seiko 3863-803 represents an important milestone in Seiko's 1978 lineup. Powered by the 3863 caliber with 23j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-9ab4047b4f1b]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1978

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