Featuring triple sensor technology including a compass, barometer and altimeter, it's no surprise the Rangeman GW9400 is one of the most popular "Master of G" G-SHOCK watches released. I picked up a black variant in early 2019 to add to my growing "BB" G-SHOCK collection.
The Black Panther is the name given to a limited edition Japan-only version of the GW9400 featuring an all-black colorway, and attracts a considerable premium over the standard models.
As it happens, the standard black Rangeman features a very similar case design, and the army green version of is released with a negative module. I undertook a project to swap modules between these models to create my own "Black Panther" as well as a positive display Rangeman for weekend adventures.
The standard GW9400-1 as delivered:
The end product. Both watches have paint protection film applied to the mineral crystal to protect against scratches.