Seiko Cal. 6650 - 739

The 6650-739 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6650 caliber with 20j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-a109ec880729]

Also known as: Helmet, Flighty

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1985

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