Seiko Cal. 4527 - 723

Seiko 4527-723

This Spring Drive model from 1967 features a 36mm Stainless Steel case. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-c5ed08a442ec]

Also known as: Baby Tuna, Flighty

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
15.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1967

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