Seiko Cal. 6643 - 416

Released in 1997, the Cal. 6643 with design code 416 was part of Seiko's domestic market collection. With its 18mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-252dd6ca57b1]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1997

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