Q：Why did I receive a stainless steel version when I ordered the titanium alloy version? TRITON-TI VS TRITON Next-Generation TRITON Titanium 1. Lighter Weight---All-Day Comfort 2. Full Titanium Construction (Case & Band): 10x More Corrosion-Resistant Than Stainless Steel. 3. Solar-Powered Watch with 180-Day Battery Life 4. 300M Waterproof TRITON-TI Specifications Model: TRITON-TI Case Material: Titanium alloy Strap Material: Vapor-Phase Silicone Rubber/Titanium alloy Case Length: 51.4mm Case Thickness: 16mm Case Dia: 45.8mm Strap Width: 24mm TRITON Parameters Watch Size: 45.8*51.2mm Case Thickness:16.1mm Strap Width: 24mm Strap Length: 260mm Weight: 131g Movement: Solar Movement Watch case: 316 Stainless Steel Crowm: Threaded Screw-Down ML2016: 180 days of battery life Waterproof: 300m Strap: 24mm Width Silicone 24mm Stainless Steel