IWC Vintage Aquatimer Automatic 1967 White Gold IW3231-10

The Vintage Aquatimer belongs to IWC's Vintage Collection, launched in 2008 for the brand's 140th anniversary with modern versions of six historic models. IWC's Aquatimer of 1967, such as the reference 812 AD, was a 37.5 mm steel automatic with Pellaton winding and a timing ring under the crystal rather than an outer rotating bezel. The modern watch is far larger, 44 mm across and 14.5 mm thick, and takes a 22 mm strap. It has stick and dot markers, stick hands and a sapphire crystal.

The regular white gold IW3231-04 has the same case with a grey dial; this reference trades the grey for white in a run of 30. The steel IW3231-01 has a black dial, the rose gold IW3231-03 a silver one, and the platinum IW3231-05, limited to 500 pieces, is also silver. The hand-wound Vintage Pilot's Watch 1936 in white gold (IW3254-04) has the same 44 mm diameter but is 2.5 mm thinner.