Without knowing your definition and intent behind "marketing strategy", you've asked a loaded question... I'll take a leap and assume you're looking to get the word out about your new site. With that in mind, and also presuming you know who and where you customers are, you'll want to focus your 'free' time reaching out to bloggers and media that care about unique watches. With an effective approach to these key influencers you might earn some 'free' publicity to their followers and fans.
Also, fathers day is coming up and their are a lot of writers looking for new and 'unique' fathers day gifts.