Seiko Cal. 6648 - 714

The 6648-714 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6648 caliber with 20j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-6426909a9fb5]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1991

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