Seiko Cal. 6649 - 607

The 6649-607 is a sought-after Solar piece from Seiko's golden era. Powered by the 6649 caliber with 20j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-186c9ec6ed0f]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1965

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