Seiko Cal. 3863 - 102

The 3863-102 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3863 caliber with 25j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-41cac9ad9d89]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1972

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