If you were to check http://clockmaker.com.au/, then you will easily be able to find a place that sells them. As I'm not from Sydney, checking there online is your best bet.
Zenith watches can be bought on from a variety of websites online. Some such websites that sell zenith watches are overstock.com, e-bay, and ashford.com.
A Zenith watch can be purchased in a large variety of locations. They can be purchased online on websites especially dealing in watches and other productions or from a specialized watch store in many outlets.
Festina watches are purchasable at a variety of retail outlets and websites. It will be more common to find Festina watches at large department stores and other outlets that specialize in fine watches.
Any jewelry store should have zenith watches, find a store that is great quality but cheap, never buy off of second hand stores or sites because you may not get what you are looking for.
There are several place from where one can buy Zenith watches. On internet it is available on eBay as well but it is difficult to check the originality. you can buy it from http://www.zenith-watches.com/en/
There are many quality brands of watches that have been around for decades even centuries. Buren, Cyma, Eterna, Waltham, and Zenith are all high end vintage watches.
Sekonda branded watches are sold in many different retail outlets. Retail outlets such as Nordstrom's, Herrod's, and other similar high end department stores.
Here you go: http://en.wikipedia.org/wiki/Zenith_(watchmaker). You can also go on amazon and look at a couple of their watches and see what kind of rating they got from consumers.
One can purchase original-made Zenith watches online from Luxurybazaar. Since Zenith watch manufacture is now owned by LVMH (Louis Vuitton), it is advisable to seek the watch/jewelry division of any Louis Vuitton shop and inquire about the availability and possibility of purchasing any model one may prefer. Christian Dior owns part of Louis Vuitton shares so it is also advisable to inquire at any Christian Dior jewelry division about Zenith watches.
I remember there is a watch shop sell Invicta in outlets , Andrew Tao
I would suggest asking some friends who have watches you admire where they bought them. Just because something is expensive doesn't mean the longer it will last or that it is better.
zenith