Before a working prototype is created, we fabricate a wax model to double check dimensions and proportions. Below is the wax model of the Tropik next to a Laguna for a size comparison. The Tropik B (bronze) and stainless steel Tropik both share the same case, so the reference can be used for both.
Top to bottom: Tropik wax (14mm), Laguna (15.25mm), Puck (16mm)
I have had no formal training as a hand model, but I decided to throw caution to the wind and go for it. My wrist is a not-unmanly 7".