Seiko Cal. 4477 - 750

Seiko 4477-750

The 4477-750 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-6f44db8f498a]

Also known as: World Timer

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
11.8mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
140m
Dial Color
White
Jewels
31j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1990

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