Seiko Cal. 6623 - 303

The Seiko 6623-303 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-d5ac986f4309]

Also known as: Navigator, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1971

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