Seiko Cal. 6643 - 599

The Seiko 6643-599 represents an important milestone in Seiko's 1991 lineup. Powered by the 6643 caliber with 18j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-b10a75d05306]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1991

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