Seiko Cal. 4477 - 991

Seiko 4477-991

The 4477-991 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-59dc5dcd36bd]

Also known as: Navigator, Flighty

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
8.1mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Green
Jewels
25j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1977

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seikata-wm-59dc5dcd36bd