Seiko Cal. 6617 - 775

The 6617-775 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6617 caliber with 17j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-ba2ac6bf0886]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1976

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