I am posting from Japan, at very small watchmaking workshop.
I have a plan to make a new watch, it is a 'field watch'. Field watch is a sort of tool for outdoor acting. I am interesting in a simple fixed-lug tool watch, just I want to wear on my wrist personally.
Before start of the making, I listed its specification. Though only as hope for now.
- 316L stainless steel case
- 10ATM water resistant
- Screw-down crown
- Luminous index
- Swiss ETA2824 automatic movement
Here is my design. I don't need complex shape. I have to use hand operating small lathe and mill machines, it is unable to cut metals in complex surfaces.
The main body will be made from a SUS plate.
Anyway, let's start!
I think it is required to make a trial case parts firstly. I'd like to make them from aluminiun alloy, softer than stainless, but I intend to do it in almost the same way as real production.
Main body is cut out from this aluminium plate.
After roughly cutting by hand saw...
it must be milled to 46x47x7.4mm.
Center is pointed. This is a guide to open through hole for the movement at lathe.
20mm lug space is milled at both side.
A space for crown with guard.
Changed to lathe work. The plate is bonded to metal pipe by LOCTITE 263.
Then 27.0mm hole must be opened.
That's all for today!