Seiko Cal. 3878 - 778

Seiko 3878-778

This Kinetic model from 1984 features a 41mm Two-Tone case. Powered by the 3878 caliber with 29j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-f009f14490aa]

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
41mm
Case Thickness
14.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
100m
Dial Color
Black
Jewels
29j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1984

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