Seiko Cal. 6284 - 636

The Seiko 6284-636 represents an important milestone in Seiko's 1981 lineup. With its 21mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-e0c8969f08e1]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1981

Related Models

• Seiko 4566-768
• Seiko 7024-858
• Seiko 6269-377
• Seiko 4546-575
• Seiko 0738-490
• Seiko 5264-371
• Seiko 7076-346
• Seiko 3815-545
• Seiko 4534-755
• Seiko 6687-481
• Seiko 5686-817
• Seiko 3848-518