Seiko Cal. 6628 - 762

The 6628-762 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6628 caliber with 18j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-05fcff2e2b11]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1970

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