Seiko Cal. 6668 - 643

The Seiko 6668-643 represents an important milestone in Seiko's 1999 lineup. Powered by the 6668 caliber with 23j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-5dfb36bf9162]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1999

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