Seiko Cal. 6628 - 243

Seiko 6628-243

The 6628-243 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6628 caliber with 21j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-82afeec0a766]

Also known as: Sumo, Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
10.5mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Cream
Jewels
21j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1988

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