Seiko Cal. 4428 - 917

The Seiko 4428-917 represents an important milestone in Seiko's 1981 lineup. With its 19mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-7e9a3857e20c]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1981

Related Models

• Seiko 4545-917
• Seiko 4449-118
• Seiko 0783-986
• Seiko 6336-879
• Seiko 4479-380
• Seiko 7034-844
• Seiko 6191-973
• Seiko 7020-635
• Seiko 5650-209
• Seiko 6256-505
• Seiko 4458-789
• Seiko 4483-555