Seiko Cal. 7031 - 342

This Automatic model from 1982 features a 35mm PVD Black case. Powered by the 7031 caliber with 28j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-fff960fd06ce]

Also known as: Monster, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1982

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