IWC Ingenieur SL 50th Anniversary Limited Edition

IWC celebrates the 50th anniversary of the Ingenieur SL (Ref. 1832), created by Gérald Genta.
Introduced in 1976, the Ingenieur SL (Ref. 1832) is an IWC sports watch designed by Gérald Genta. Although it featured an integrated bracelet, a bezel with five recesses, and a soft-iron inner case to protect the movement from magnetic fields, the Ingenieur SL did not achieve significant success at the time. However, as integrated sports watches rose in popularity, the model was re-evaluated by collectors and established itself as a signature timepiece for both replica IWC and Gérald Genta. In response, IWC unveiled a next-generation Ingenieur in 2023, inspired by the original Ingenieur SL.

This year, a new model commemorating the 50th anniversary of the original Ingenieur SL follows in its footsteps. The Ingenieur SL 50th Anniversary Limited Edition draws inspiration from an alternative dial variant of the Ref. 1832. While the Ref. 1832 is widely remembered for its black dial featuring a grid pattern, a version with a vertically brushed silver dial also existed. On this vertically brushed silver dial—which omits the grid pattern—the number “50” has been added beneath the Ingenieur logo at the 6 o’clock position to mark the original Ingenieur SL’s 50th anniversary; this placement mirrors that of the “SL” lettering on the Ref. 1832. Details carried over from the original, such as the sword-shaped applied indices and hands, have also been retained in the 50th-anniversary edition.
The replica watches comes in two case sizes: 40mm and 35mm. A defining design feature of the original Ingenieur SL was the five notches on the bezel; however, because these were not fixed like screws, their alignment varied from one production run to another. For the current Ingenieur, IWC chose to secure the bezel with screws to faithfully replicate this design while ensuring the notches remain in a fixed, consistent position. The case retains the barrel shape of the original Ingenieur SL but incorporates the crown guard introduced with Reference 3239. Unlike the original model, which featured an entirely brushed finish, the current version adds polished accents to the edges of the bezel, case, and crown guard. The thickness is 10.8mm for the 40mm version and 9.4mm for the 35mm version, and both offer a water resistance rating of 100 meters.
The 40mm version is powered by IWC’s in-house automatic Calibre 32111 (operating at 4 Hz). It features a double-pawl winding system that enhances winding efficiency and boasts an impressive power reserve of 120 hours. Like the original Ingenieur SL, this 40mm model—which features a solid case back—includes a soft-iron inner case to protect the movement from magnetic fields.
The 35mm version is powered by the automatic Calibre 47110 (operating at 4 Hz with a power reserve of approximately 42 hours). Unlike the 40mm version, the movement can be viewed through a sapphire case back. The movement bridges and the gold-colored rotor feature a circular-grained finish.
The bracelet features a structure that alternates between H-shaped and rectangular links, serving as a modern reinterpretation of the Ref. 1832 design. Unlike the Ref. 1832 or Ref. 3239—where the first link was integrated into the case—this model utilizes a separate link to enhance wearer comfort. Regarding the finish, the bracelet mirrors the case with a predominantly brushed texture, complemented by polished edges on each link.

The IWC Ingenieur SL 50th Anniversary Limited Edition is produced in a limited run of 1,150 pieces for each version. The domestic launch price is 21.6 million KRW for the 40mm version (Ref. IW328910) and 18.7 million KRW for the 35mm version (Ref. IW324909).