Seiko Cal. 4428 - 818

The Seiko 4428-818 represents an important milestone in Seiko's 1981 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-8143c51c1f13]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1981

Related Models

• Seiko 4442-106
• Seiko 3864-715
• Seiko 3833-732
• Seiko 6358-547
• Seiko 4579-170
• Seiko 4515-186
• Seiko 7137-135
• Seiko 6234-936
• Seiko 5637-994
• Seiko 7187-516
• Seiko 6328-478
• Seiko 7086-552