Seiko Cal. 4478 - 743

Seiko 4478-743

This Hand-Winding model from 1991 features a 36mm Stainless Steel case. Powered by the 4478 caliber with 33j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-1adb3b110dd8]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
8.6mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
110m
Dial Color
Silver
Jewels
33j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1991

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