Seiko Cal. 4456 - 957

Seiko 4456-957

The 4456-957 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-be20f8f38cfa]

Also known as: Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
90m
Dial Color
White
Jewels
33j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1968

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