Wrist Watch no. 8176

Case: Missing Dial: Movement: 23mm, balance cock signed "HXB" for IWC [International Watch Co.], signed "8176, CH Meylan Watch Co., Seventeen 17 Jewels, Adj'd to Temp. and Three 3 Pos., Swiss" Provenance: 19?? - CH Meylan, Brassus 19?? - Tiffany & Co., New York 2020 - ebay #323996924691 $395, Victoria, British Columbia, 2020