Seiko Cal. 7020 - 638

The Seiko 7020-638 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-a7868b8fb783]

Also known as: Monster, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1970

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