Seiko Cal. 7177 - 766

The 7177-766 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7177 caliber with 26j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-a4c858ada0b6]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1973

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