The Rs 472.29 crore initial public offering (IPO) of Ethos, the premium watch retailer, will kick off for subscription on Wednesday, May 18. The company is selling its shares in the range of Rs 836-878. The company aims to raise Rs 375 crore crore via issuance of fresh equity shares, whereas existing shareholders and promoters will offload 11,08,037 shares aggregating to Rs 97.29 crore.