Seiko Cal. 4478 - 289

Seiko 4478-289

This Spring Drive model from 1975 features a 42mm Gold-Plated case. With its 22mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-1f0fc2b2404d]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
8.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Navy
Jewels
19j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1975

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