Seiko Cal. 5688 - 929

The Seiko 5688-929 represents an important milestone in Seiko's 1970 lineup. With its 20mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-9a788fb56c09]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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