Seiko Cal. 6641 - 721

The 6641-721 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6641 caliber with 17j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-f15ae47d77f0]

Also known as: Navigator, Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1996

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