2 models / 12 items
“S-860T series” is a simple metal frame that incorporate two different style of Four Nines’ bridge construction. Its considerate construction embodying Gyaku-R hinge shows Four Nines’ effort that strives for ideal glasses at premium quality.
54□17 138 / 6 items
53□17 138 / 6 items
Twin Bridge built to S-860T corresponds to twist. It builds two bridges in front of the others. Front bridge is made of pure titanium that is pressed vertically while inner bridge is made of βtitanium that is pressed horizontally. Front stability is aided by welding the rim at three dimensions.
On the contrary, Two Bridge built to S-861T raise front durability that builds two bridges both made of βtitanium on top of the others. The elongated top bridge supports the shorter bridge on the bottom with deliberate balance.
The maximum functionality of Gyaku-R hinge gets demonstrated fully upon considerate construction that ascertains front durability. Stiffer the front becomes, more effective Gyaku-R hinge works. This construction of bridge and Gyaku-R creates the best balance of the frame.