Seiko Cal. 7020 - 657

The Seiko 7020-657 represents an important milestone in Seiko's 1976 lineup. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-bacea9d26067]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1976

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