Seiko Cal. 5661 - 878

The Seiko 5661-878 represents an important milestone in Seiko's 1988 lineup. With its 20mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-6804580a1102]

Also known as: Tuna, UFO

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1988

Related Models

• Seiko 4540-728
• Seiko 4526-237
• Seiko 7050-868
• Seiko 6294-936
• Seiko 6342-625
• Seiko 4442-647
• Seiko 6288-593
• Seiko 6656-211
• Seiko 4430-322
• Seiko 5272-875
• Seiko 7119-603
• Seiko 6250-641