The SEA-GULL Heritage Series Off-center Tourbillon Transparent Caseback 41mm is a 41 mm watch from the Tourbillon collection. Its stainless steel case is 10 mm thick and 48.3 mm from lug to lug, with 21 mm lugs. It is water resistant to 50 m. The crystal is sapphire.

The manufacturer’s list price is US$3,334. It comes in 2 versions, with white, silver and gold dials.