Aliexpress
Click here… to search for Sanda 740 5321 Men Watch on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (9.77 USD): e2bcea
Coupon (10.69 USD): aff7off
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Price history and price alert
Price history (for all/most countries) for Sanda 740 5321 Men Watch is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).