Seiko Cal. 6623 - 427

Seiko 6623-427

The 6623-427 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6623 caliber with 20j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-62f2570b887d]

Also known as: Tuna, Silverwave

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
40m
Dial Color
Green
Jewels
20j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1974

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seikata-wm-62f2570b887d