Seiko Cal. 4428 - 603

Seiko 4428-603

This Automatic model from 1968 features a 46mm Titanium case. Powered by the 4428 caliber with 33j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-a342da890ec1]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
46mm
Case Thickness
11.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
180m
Dial Color
Cream
Jewels
33j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1968

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