Seiko Cal. 4497 - 621

Seiko 4497-621

This Spring Drive model from 1967 features a 40mm PVD Black case. Powered by the 4497 caliber with 26j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-7e6856668640]

Also known as: Emperor

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
40mm
Case Thickness
13.1mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
26j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1967

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seikata-wm-7e6856668640