I am a fan of the watchbox show. You can find their youtube talk show, usually with updates several times a week.
Look out for the presenter : Tim.
He is a watch GURU whom I really respect.
These aside, do keep in mind that they are a retailer for both new and preowned watches. Hence, they usually bring out the best of every watches but seldom talk about their downside.
And yes, watchbox Singapore is legit. They have been planning the Singapore branch for quite some time and its recently open for business.