Seiko Cal. 5688 - 742

Released in 1975, the Cal. 5688 with design code 742 was part of Seiko's domestic market collection. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-455fec348ce8]

Also known as: Rally, Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1975

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