Seiko Cal. 5628 - 278

Seiko 5628-278

The 5628-278 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5628 caliber with 20j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-c5e297d7a237]

Also known as: Monster, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
35mm
Case Thickness
12.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
150m
Dial Color
Black
Jewels
20j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1978

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seikata-wm-c5e297d7a237