Seiko Cal. 7028 - 672

Seiko 7028-672

The 7028-672 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7028 caliber with 22j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-1fa15e70a7c9]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
43mm
Case Thickness
15.2mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Navy
Jewels
22j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1994

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