Seiko Cal. 5669 - 378

The 5669-378 is a sought-after Quartz piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-32bfffa137da]

Also known as: Sumo, Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1969

Related Models

• Seiko 6681-277
• Seiko 5679-168
• Seiko 3834-540
• Seiko 5279-775
• Seiko 4587-151
• Seiko 7027-922
• Seiko 0728-152
• Seiko 3811-637
• Seiko 3868-310
• Seiko 6389-251
• Seiko 6650-140
• Seiko 6664-713