Seiko Cal. 4577 - 442

Seiko 4577-442

The 4577-442 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-43e872679f05]

Also known as: Tuna, Pogue

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
8.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Silver
Jewels
28j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1978

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