Seiko Cal. 3863 - 690

The 3863-690 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3863 caliber with 31j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-ced9bb8840f4]

Also known as: Monster, Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1984

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