Seiko Cal. 4478 - 621

Seiko 4478-621

This Hand-Winding model from 1990 features a 39mm Titanium case. Powered by the 4478 caliber with 19j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-ca3984b054ca]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
39mm
Case Thickness
14.8mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
150m
Dial Color
Cream
Jewels
19j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1990

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seikata-wm-ca3984b054ca