Seiko Cal. 4528 - 903

Seiko 4528-903

The Seiko 4528-903 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-e7f33239cbb2]

Also known as: Shogun, Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.2mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
White
Jewels
17j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1974

Related Models

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