Seiko Cal. 4540 - 421

Seiko 4540-421

This Spring Drive model from 1967 features a 42mm Gold-Plated case. With its 20mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-6b6e8505d6f5]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
10.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
28j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1967

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