Seiko Cal. 0731 - 792

Released in 1979, the Cal. 0731 with design code 792 was part of Seiko's domestic market collection. With its 19mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-b9cb080242ff]

Also known as: Monster, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1979

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