as a diver I could resist the whale pen - I didn't knew the brand Opus but the quality is very good, write's just smoothly and fits particularly well in the hand, mine is filled with Landsiedel Bowtie n°1 bunny blue - perfect combination for me!
This demonstrator fountain pen brings together the fluidity of Opus 88 with the stylish design that pays a nice tribute to the blue whale.
Never was the world's largest whale so light in hand, sliding acoss paper like a cetacean in water. Simply: lovely!