Jon Bernthal wears a Sangin Neptune

Frank Castle enters Spider-Man: Brand New Day going after a tank in the middle of a prison break, and Spider-Man has to step in to keep the damage down. Later, Peter Parker hides out on Castle's houseboat. Castle works with his sleeves shoved up, and on his left wrist is a dive watch on a black nylon strap.

It is a Neptune from Sangin Instruments, a microbrand founded in 2016 by Jacob Servantes, a former Marine Raider, and named for the district in Afghanistan's Helmand Province where he served. The case is 40 mm across and 11 mm thick, rated to 300 m, with a double-domed sapphire crystal and a Swiss Sellita SW300 automatic inside. The crown sits at 8 o'clock instead of 3, which the brand says is "to reduce wrist interference during dynamic movement." The price is $1,599.

The casting fits. Castle is written as a former Force Reconnaissance Marine, and the watch on Jon Bernthal's wrist comes from a company a Marine special operator founded and developed with feedback from serving military members. Servantes identified it himself in a post to the brand's owners' group. After the film opened on July 31, 2026, GQ reported that buyers had to join a waiting list to get one.

It is Sangin's second film in two years. Jason Statham wore the brand's Kinetic II in A Working Man in 2025.