Seiko Cal. 6179 - 731

The 6179-731 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6179 caliber with 29j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-cf5ae89ce228]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1971

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