Seiko Cal. 5649 - 904

The 5649-904 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5649 caliber with 18j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-4803b1e5ac72]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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