Seiko Cal. 5682 - 727

The Seiko 5682-727 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-936f81991048]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1978

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