Seiko Cal. 6647 - 276

The 6647-276 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6647 caliber with 29j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-7d020e27e31a]

Also known as: Rally, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1965

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