Seiko Cal. 4551 - 682

This Spring Drive model from 1986 features a 46mm PVD Black case. With its 20mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-207ab0b0f159]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1986

Related Models

• Seiko 5252-229
• Seiko 4534-417
• Seiko 4493-458
• Seiko 0735-705
• Seiko 4473-686
• Seiko 6362-142
• Seiko 7068-989
• Seiko 0718-158
• Seiko 5637-863
• Seiko 7026-376
• Seiko 7026-697
• Seiko 5239-391