Seiko Cal. 6649 - 849

The 6649-849 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6649 caliber with 17j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-4c2124ef896d]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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