TERIC

The Shearwater Teric puts a full technical dive computer in a watch a diver can wear to dinner, which is the compromise most wrist computers fail. Nothing is cut to reach that size: it runs five open-circuit and five closed-circuit gases with trimix, on the same Buhlmann gradient-factor algorithm as the Petrel.

The case is rated to 200 metres and weighs 120.4 grams at 54.5 by 53.5 millimetres and 17.5 thick. A 1.39 inch AMOLED sits behind a sapphire crystal window in a 316 stainless bezel, with four buttons on an adaptive menu. The internal cell gives up to 30 hours of diving or 50 hours in watch mode and charges on the wireless dock. Seven dive modes cover recreational, gauge, freediving and technical use, and the log stores 500 hours.

The result is a computer that gets worn every day and is therefore on the wrist when a dive comes up unplanned. Air integration is optional and reads up to four transmitters, so gas pressure and decompression sit on one screen. The AMOLED keeps its contrast in the dark water where a transflective screen needs a backlight to read at all.

Four finishes: natural stainless silver, black, blue, and the bronze Journeys Edition. Each ships with the Remora quick-release band, a short band for smaller wrists, a black webbing strap for drysuit cuffs, the wireless charging station and a screen protector. Transmitters are the Shearwater Swift, sold separately.