Seiko Cal. 4427 - 550

Seiko 4427-550

This Automatic model from 1981 features a 38mm Two-Tone case. Powered by the 4427 caliber with 28j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-c1d5b8cd9a09]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
White
Jewels
28j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1981

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