Seiko Cal. 7028 - 664

The 7028-664 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7028 caliber with 26j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-8a98ef250b79]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1994

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