Seiko Cal. 5660 - 300

This Spring Drive model from 1969 features a 35mm PVD Black case. With its 22mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-1a54bf3e60ff]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1969

Related Models

• Seiko 6661-384
• Seiko 5225-571
• Seiko 5220-628
• Seiko 7158-672
• Seiko 5638-168
• Seiko 5290-655
• Seiko 5612-789
• Seiko 0775-698
• Seiko 4570-658
• Seiko 3825-382
• Seiko 4510-553
• Seiko 6618-678