Seiko Cal. 5686 - 944

The 5686-944 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5686 caliber with 29j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-aec1359d01bf]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1979

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