Aliexpress
Click here… to search for BlitzWolf BW-HL1 22mm Strap Replacement on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (11.57 USD): 6GSGIT
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): AFfbG10, bgwba, BGVDay10%off, BGAFF10OFF, BGBW152, bGhOnEy10, BGdragonBoat, BGSS10%SW, BgoFErTaSchInA10, BgcLuBofErtA10, 10%ForNewBW, 10%ForBGBW, BGHONEY2110, 13f142, BANGGOODSD
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-HL1 22mm Strap Replacement.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).