Seiko Cal. 4477 - 518

Seiko 4477-518

This Automatic model from 1971 features a 38mm Hardlex-Coated Steel case. Powered by the 4477 caliber with 27j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-0e4d3004f386]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
11.3mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Burgundy
Jewels
27j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1971

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