Seiko Cal. 6640 - 149

The Seiko 6640-149 represents an important milestone in Seiko's 1968 lineup. Powered by the 6640 caliber with 19j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-a5b6bbe5088e]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1968

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