Seiko Cal. 6643 - 515

The Seiko 6643-515 represents an important milestone in Seiko's 1999 lineup. Powered by the 6643 caliber with 27j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-7495a58ee086]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1999

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