Seiko Cal. 7031 - 497

This Automatic model from 1989 features a 38mm PVD Black case. Powered by the 7031 caliber with 20j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-48bee0562581]

Also known as: Helmet, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1989

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