Seiko Cal. 6228 - 657

Seiko 6228-657

The 6228-657 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6228 caliber with 31j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-cba19c4fc98a]

Also known as: Silverwave, Sportsmatic

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
9.8mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1970

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