Seiko Cal. 4456 - 644

Seiko 4456-644

The 4456-644 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4456 caliber with 30j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-d5a2f9ab6326]

Also known as: Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
9.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
110m
Dial Color
Cream
Jewels
30j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1996

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seikata-wm-d5a2f9ab6326