If you had any doubts that the collaboration frenzy that has gripped the watch world has cooled, the first day of Geneva Watch Days may have gone a long way toward silencing that particular intrusive thought. Not only did we see a formal alliance between Ming, Fleming, and J.N. Shapiro that we told you about yesterday, but Moser, one of our favorite high end independents, and Studio Underd0g, one of our favorite affordable independents, joined forces in an unexpected way. The Endeavour Perpetual Calendar Passion Fruit and the Studio Underd0g Passion Fruit 03Series play to each brand?s unique strengths, and reveal that while it might seem like an odd match on paper, these brands really do have a lot in common. 

Let?s look at the perpetual calendar first. The stainless steel Endeavour case measures 42mm in diameter and is a very wearable 12.8mm tall. The dial has a blissful, tropical quality to it, dominated by a solid gold base dial and a lacquered purple surround. It runs, of course, on the HMC manufacture caliber 800, which is simply one of the best perpetual calendar movements in the game, providing more information at a glance you are likely to realize at first. 
The Passion Fruit 03Series chronograph could be the Endeavour?s twin separated at birth – it makes use of the same color combinations but transposes them to a chronograph layout. It bears a lot of similarities to the original Studio Underd0g chronos, and the ?passion fruit? theme feels like somethin...