Seiko Cal. 5688 - 649

The 5688-649 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5688 caliber with 34j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-7da5349b98df]

Also known as: Monster, Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1996

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