Seiko Cal. 6645 - 650

Released in 1982, the Cal. 6645 with design code 650 was part of Seiko's domestic market collection. With its 22mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-58ab2695bae2]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1982

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