Although I thought originally Do calendar six o'clock position of SNK621 cute、Can not replace the belt was troubled to buy。 I know that is replacing the case at this site、I decided to replace it with SNK357 that before from 5 shield pattern is thought that Do good。 (Because I do not can was to ask the store manager(Lol)) Although it such there is also to use as it is in fact reach the hand look try and both very good finish、Because much trouble SNK621 was immediately replaced with a leather belt。 The color was lost and bluish, but Brown。 Also we are very happy to use in private even at work! SNK357 is I am very fond Marukkoku than the original case。This is I think that I want to use at work and formal occasions。 Seiko 5 It is fun。Addicted have。 Thank you for the manager!