Seiko Cal. 6643 - 924

The Seiko 6643-924 represents an important milestone in Seiko's 1996 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-a96bf6b8e3bf]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1996

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