Seiko Cal. 7031 - 520

The 7031-520 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-41a71ae7fa5f]

Also known as: Monster, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1980

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