Seiko Cal. 7020 - 578

The Seiko 7020-578 represents an important milestone in Seiko's 1979 lineup. It features a Silver dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-ab8505db598e]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1979

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