Seiko Cal. 3863 - 690

Seiko 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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