Seiko Cal. 4428 - 797

Seiko 4428-797

The Seiko 4428-797 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-065f43d86196]

Also known as: UFO, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
14.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
80m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1970

Related Models

seikata-wm-065f43d86196