Another update:
Found another manufacturer that is willing to do the project at 100 pieces. The expected cost per unit case, dial and hands is about USD 200 (likely less). This is based on the specs given to them. The final costing will be fine tuned dependent on a number of things, like the thickness of the crystal, the lume used, engraving or etching on the case back, even things like the mechanism for the bezel. There are simple spring ball ratchet type design and there are the single spring leg design and more than one spring leg design. Also how the bezel is held in place and choice of plastic or metal movement holder.
This is just to give you an idea of what goes behind the design of a watch and its eventual costing.
Simple ratchet design. Lets not talk about the level of finishing of the hole.
A better ratchet mechanism.
Plastic spacer and movement holder.
The bezel is held by a rubber gasket. This method is used by Seiko and Casio.
The rubber gasket sits inside the groove and the lower lip (in this photo it is the lip at the top as the bezel is upside down) will engage a lip on the case. It will 'lock' as there is an interference gap between the two lips. Look at the different finish of the ratchet tooth. These does have an impact on the costing of the watch.
Using a metal spring ring.
The screwdown crown design of the PRS-2 Dreadnought watch (rated to 2,500M)
So the first thing is to see if we can get to the required number of people for the project to proceed.
