Seiko Cal. 5688 - 978

The Seiko 5688-978 represents an important milestone in Seiko's 1999 lineup. Powered by the 5688 caliber with 18j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-03bb4a8ebb3d]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1999

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