Seiko Cal. 3865 - 856

The Seiko 3865-856 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-3ea69f2ef413]

Also known as: Shogun, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1977

Related Models

• Seiko 7050-432
• Seiko 7131-269
• Seiko 6693-944
• Seiko 6177-818
• Seiko 5617-385
• Seiko 0750-162
• Seiko 6119-283
• Seiko 5283-498
• Seiko 6333-435
• Seiko 5296-322
• Seiko 6682-826
• Seiko 6391-436