Seiko Cal. 4448 - 440

Seiko 4448-440

This Spring Drive model from 1981 features a 38mm Hardlex-Coated Steel case. Powered by the 4448 caliber with 19j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-de1b63fd067d]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Black
Jewels
19j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1981

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