Manufacturer: IWC Year: Circa 1970 Reference No: 1816 Movement No: 2'093'669 Case No: 1'953'717 Model Name: Aquatimer Material: Stainless steel Calibre: Automatic, cal. 8541B, 25 jewels Bracelet/Strap: Leather Clasp/Buckle: Stainless steel IWC pin buckle Dimensions: 40mm Diameter Signed: Case, dial, movement and buckle signed
Catalogue Essay
Released in 1967 in a far more limited numbers than other sport watches, reference 1816 is a historically interesting timepiece representing IWC 's entry in the submersible world.
The Aquatimer has a modern, sleek appeal with a ‘super compressor’ case that has less bulk compared with other dive watches of the era. A timing ring placed underneath the crystal replaces the outer rotating bezel. This works as a safety mechanism, keeping the bezel from being bumped and accidentally changing the time, as well as giving the watch a flatter profile. Furthermore, the in-house caliber 8541B movement features the innovative “Pellaton” winding system, patented by IWC in 1950. This horological innovation uses a bi-directional rotor improved efficiency, giving greater winding power. Reference 1816 features a cushion-shaped case with luminous hands and hour markers rendering the dial easy-to-read and extremely recognisable from vintage diver's watch collector. Offered overall in great condition, the presented lot is an interesting and early diver's watch from IWC and definitely a must-have for collectors new and experienced, alike.
With a clear focus on technology and development, the Swiss watch manufacturer IWC Schaffhausen has been producing timepieces of lasting value since 1868. The company has gained an international reputation based on a passion for innovative solutions and technical ingenuity. One of the world's leading brands in the luxury watch segment, IWC crafts masterpieces of haute horlogerie at their finest, combining high precision with masculine design. Vintage wristwatches such as the oversized Portugieser, Aquatimer, Ingenieur and the B-UHR pilots watch are especially desirable for collectors.