Seiko Cal. 6649 - 133

The 6649-133 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6649 caliber with 21j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-becba8cfd890]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1972

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