Seiko Cal. 6643 - 704

The Seiko 6643-704 represents an important milestone in Seiko's 1982 lineup. It features a Navy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-a3995b3e2b82]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1982

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