Klaeuse SK-293 with natural diamond

Last September, I posted about a brand called Klaeuse who were a mystery brand, but one that used expensive materials. Today's watch is my second Klaeuse watch and follows the standard set by the first model.

This is the Klaeuse SK-293-F. It is a 3 hand dial design with a quartz movement.  Instead of titanium, this has a stainless steel case in silver and gold. The glass is shaped with a peak in the middle, and the glass is designed to have 12 flat faces which make it catch the light (like the cut of a diamond). On the face, at the 12 o'clock hour marker is a jewel, and according to the text on the face, this is a natural diamond.

I still haven't found any more concrete information about the Klaeuse brand as I can't find their website. The watches can be recognised by the brand name (in lower case characters) and their logo of a castle shape with a tall central tower. One site I found suggests that they are made by Elgin USA and use Swiss movements, and that model had an rrp of ¥38,000 (potentially confirming it is an expensive brand).

Klaeuse Titan Solar SK-176

Today's watch is another for a sunny day, and another I don't have much information about.

The watch is by a Japanese brand called Klaeuse. Their name appears over many sites, but all are watch sales sites, and I haven't found their own homepage so far. The only thing I have seen is they they use expensive materials (titanium, silver, etc), so I'd guess they are a quality brand.
This watch is the Titan Solar. Based on the name, you'd be right if you'd guessed that this is a solar watch made with an all titanium case.

It has a 3 hand dial, with KO number markings, but with jewels at the 3, 6, 9, and 12 o'clock positions. The solar panels can be seen on the face, and it seems to have a good lifetime even without sun. Inside, it seems it has a Miyota 5L81 module.

The back states the material, and that this is 100m water resistant. It also has the model number SK-176-C.