Seiko Cal. 0731 - 783

The Seiko 0731-783 represents an important milestone in Seiko's 1975 lineup. Powered by the 0731 caliber with 21j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-728b1f052f2b]

Also known as: Shogun, Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1975

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