Seamaster Baby PloProf 166.0250

Seamaster 120 in a sculpted 39 mm case with PloProf-style hands and a mesh bracelet, hence “Baby PloProf”. CaliberCaliberThe designation of a watch movement, identifying its design or movement family. 1012, or the lower-jewelJewelA natural or synthetic stone used as a bearing or endstone for a movement pivot. 1010 for the US market.