Seiko Cal. 7020 - 312

The 7020-312 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-d556dbd675fb]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1987

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