Seiko Cal. 7020 - 644

The Seiko 7020-644 represents an important milestone in Seiko's 1984 lineup. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-9ecc0a960ba7]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1984

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