Seiko Cal. 5624 - 390

Seiko 5624-390

This Spring Drive model from 1970 features a 42mm Hardlex-Coated Steel case. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-0875aa6d53cc]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
10.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
130m
Dial Color
Champagne
Jewels
20j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1970

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