Seiko Cal. 6647 - 677

The Seiko 6647-677 represents an important milestone in Seiko's 1999 lineup. It features a Black dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-4d491bca7be7]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1999

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