Seiko Cal. 6284 - 904

The Seiko 6284-904 represents an important milestone in Seiko's 1999 lineup. With its 19mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-ff7183e0aff1]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1999

Related Models

• Seiko 7125-568
• Seiko 7079-216
• Seiko 5261-624
• Seiko 0782-639
• Seiko 7195-116
• Seiko 6628-435
• Seiko 6379-843
• Seiko 4516-538
• Seiko 6120-210
• Seiko 4533-754
• Seiko 6227-674
• Seiko 6659-606