APS 15400, the strongest tape version of 3120Same as the original: 41mm diameter and 9.8mm thicknessAPS version 15400 is the only version on the market that can be interchanged with the original parts. All the structural positions and assembly methods of the case are the same as the originalThe delicate brushed and non-sharp craftsmanship of the case highlights APS's meticulous attention to detailsThe design of the movable head at the connection between the strap head and the watch head is the same as the originalThe blue lettering and color of the APS version 15400 are almost the same as the original