Seiko Cal. 3828 - 637

The Seiko 3828-637 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-191bac058b1b]

Also known as: Rally, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1975

Related Models

• Seiko 4589-164
• Seiko 4580-623
• Seiko 4576-355
• Seiko 4597-345
• Seiko 6293-312
• Seiko 0793-101
• Seiko 7038-692
• Seiko 3847-353
• Seiko 6278-464
• Seiko 5237-645
• Seiko 6392-968
• Seiko 7097-545