Seiko Cal. 3820 - 105

The 3820-105 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-b892dcb634b0]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1988

Related Models

• Seiko 7021-513
• Seiko 3846-706
• Seiko 6344-643
• Seiko 3897-361
• Seiko 5288-403
• Seiko 6370-449
• Seiko 6130-702
• Seiko 4494-686
• Seiko 4462-498
• Seiko 5685-969
• Seiko 6291-403
• Seiko 6616-851