Seiko Cal. 5688 - 620

Released in 1983, the Cal. 5688 with design code 620 was part of Seiko's domestic market collection. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-0bb4ee39d166]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1983

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