Seiko Cal. 4456 - 420

Seiko 4456-420

This Hand-Winding model from 1978 features a 38mm Titanium case. Powered by the 4456 caliber with 22j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-6c32ce1a1782]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
38mm
Case Thickness
11.2mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Silver
Jewels
22j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1978

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seikata-wm-6c32ce1a1782