Seiko Cal. 4528 - 767

Seiko 4528-767

This Spring Drive model from 1971 features a 37mm Stainless Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-b1b7fd829f14]

Also known as: Baby Tuna, Emperor

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
11.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Silver
Jewels
32j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1971

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