Seiko Cal. 3863 - 870

Seiko 3863-870

This Kinetic model from 1967 features a 37mm Stainless Steel case. Powered by the 3863 caliber with 22j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-33998030259a]

Also known as: Tuna

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
8.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
Black
Jewels
22j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1967

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seikata-wm-33998030259a