Seiko Cal. 6284 - 347

Seiko 6284-347

The 6284-347 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6284 caliber with 19j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-18d978e22f4a]

Also known as: Sumo

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Burgundy
Jewels
19j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1973

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