The Citizen NY0040 200m Promaster Diver and the Citizen NY2300-09G 200m Diver are two iconic dive watch designs by the Citizen Watch Company. Both were designed as professional dive watches catering to scuba divers within a 200 meter diving limit. However, there are some peculiarities in the watches that gives an advantage (or disadvantage) to one watch over the other. I will attempt to summarise the differences so that you, the readers, can be better informed to make the right choice based on your own specific requirements.


