Seiko Cal. 6649 - 820

The Seiko 6649-820 represents an important milestone in Seiko's 1977 lineup. It features a Cream dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-4df459d79c29]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1977

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