Seiko Cal. 5278 - 635

Seiko 5278-635

This Kinetic model from 1974 features a 37mm Gold-Plated case. Powered by the 5278 caliber with 18j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-f715e236819e]

Also known as: Sumo, Bullhead

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
14.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1974

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