Seiko Cal. 0731 - 779

The Seiko 0731-779 represents an important milestone in Seiko's 1986 lineup. Powered by the 0731 caliber with 26j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-2d181a2064bc]

Also known as: Helmet, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1986

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