Seiko Cal. 0731 - 812

The Seiko 0731-812 represents an important milestone in Seiko's 1989 lineup. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-52e29b78ad9a]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1989

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