This is my second Longines, after a HydroConquest Automatic in beautiful blue. Just got this Quartz in this very good condition, after a trade for my Tissot Quadrato quartz. (pic courtesy of seller, my hand wrist thinner ). Caliber is L1.614.4. After some googling, I found that these models are quite appreciated. I especially like the grey dial. Still not much findings regarding this caliber and model - I only got case no. 26614996. Thanks in advance for your valuable inputs.