Seiko Cal. 5679 - 905

The 5679-905 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5679 caliber with 33j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-c6acc86c669e]

Also known as: Sumo, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1978

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