Seiko Cal. 6640 - 719

The Seiko 6640-719 represents an important milestone in Seiko's 1974 lineup. It features a Cream dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-4a1500fd43c9]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1974

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