Seiko Cal. 5678 - 684

Released in 1980, the Cal. 5678 with design code 684 was part of Seiko's domestic market collection. Powered by the 5678 caliber with 34j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-fd3fbf25afe9]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1980

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