Seiko Cal. 5686 - 730

Released in 1978, the Cal. 5686 with design code 730 was part of Seiko's domestic market collection. Powered by the 5686 caliber with 21j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-df7dd271c9de]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1978

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