Seiko Cal. 6645 - 303

Released in 1981, the Cal. 6645 with design code 303 was part of Seiko's domestic market collection. With its 18mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-c9bd7bac4756]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1981

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