Seiko Cal. 6678 - 510

The Seiko 6678-510 represents an important milestone in Seiko's 1973 lineup. With its 22mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-f95f295fa373]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1973

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