Seiko Cal. 4478 - 440

Seiko 4478-440

The 4478-440 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-8e1afc94d7eb]

Also known as: Bellmatic, Flighty

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
15.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Green
Jewels
36j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1971

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