Seiko Cal. 3820 - 977

This Spring Drive model from 1979 features a 35mm Hardlex-Coated Steel case. Powered by the 3820 caliber with 23j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-7ed33c92fad5]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1979

Related Models

• Seiko 6170-682
• Seiko 6292-641
• Seiko 5262-419
• Seiko 6284-386
• Seiko 4530-615
• Seiko 3813-945
• Seiko 6318-646
• Seiko 6611-787
• Seiko 6240-615
• Seiko 4477-470
• Seiko 4461-146
• Seiko 6298-824