Seiko Cal. 6647 - 474

The 6647-474 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6647 caliber with 17j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-93fc7ba2f8ea]

Also known as: Panda, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1973

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