Seiko Cal. 6640 - 697

The Seiko 6640-697 represents an important milestone in Seiko's 1967 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-1de33ece7fd0]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1967

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