Seiko Cal. 5661 - 726

The 5661-726 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5661 caliber with 19j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-90897aba0e7d]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1974

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