Seiko Cal. 6648 - 990

The 6648-990 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6648 caliber with 36j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-a0fa32995cad]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1972

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