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Seiko 4206B


Seiko 4206BSeiko 4206B


The last Seiko ladies' selfwinding movement is the caliber 4206(B). It measures a little less than 8 lignes in diameter, has got a ball beared quarter-arc rotor and can be handwound.

The enormous amount of functions is astonishing: It does not only display the hours, minutes and seconds, but also the date and bilingual weekday. Both can be quickset in the middle crown position.

The Seiko 4206B has got seventeen jewels, an excenter winding mechanism and a Glucydur balance, which is secured in two inhouse Diashock absorbers.

Seiko 4206B dial sideSeiko 4206B dial side



 Technical data

Number of jewels17
EscapementAnchor with pallets
Shock protection(s)Diashock (Seiko)
Balance cock directionclockwise
Hairspring studmoveable
Regulator typeHairspring key
FunctionsHour, minute, second, day, weekday, selfwinding
Beats per hour21600
Image in Flume Werksucher 0
Seiko 4206BSeikoSeiko4206B7 3/4''''''Seiko 4206B17 Jewels, 7 3/4'''''', 21600 A/h, SC?,QG,JG,RDR,AUT



Usage gallery

Seiko Automatic ladies' watch model 0420Seiko Automatic ladies' watch model 0420