Seiko Cal. 6647 - 610

Released in 1976, the Cal. 6647 with design code 610 was part of Seiko's domestic market collection. It features a Cream dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-cba26acba7ec]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1976

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