Seiko Cal. 3820 - 835

Released in 1988, the Cal. 3820 with design code 835 was part of Seiko's domestic market collection. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-a6e0ef5dc940]

Also known as: Sumo, Shogun

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1988

Related Models

• Seiko 6320-259
• Seiko 0745-367
• Seiko 7012-449
• Seiko 7071-834
• Seiko 4532-880
• Seiko 5642-745
• Seiko 7013-751
• Seiko 4428-584
• Seiko 3836-702
• Seiko 6672-984
• Seiko 5623-370
• Seiko 6116-237