Introducing the Jack - SEAC's freediving computer gets a scuba diving makeover
Italian manufacturer SEAC (also SeacSub) are freediving specialists as much as they are Scuba, but they have given their ‘Jack’ freediving computer a makeover and released it for 2017 with a scuba mode.
All of the standard dive computer features are present in terms of Nitrox compatibility (21% - 50%, single mix), deep stop, decompression information, backlight and dive planning, but with a range of user-adjustable parameters including safety stop depth and time and 6 levels of personal adjustments.
In free-diving mode the computer uses algorithms designed to aid in the prevention of problems and and suggest recovery times specific to the sport, but in Scuba mode, the computer uses a tried and tested Bühlmann–based model making it suitable for recreational and limited decompression dives. Beyond dive data, the Jack also includes a wide range of general outdoors functions such as a 3D compass, altimeter, barometer, stopwatch and pedometer, making it a very versatile all-purpose device.
The composite and stainless steel case is designed to meet the rigours of both scuba and freediving with a maximum depth rating of 150 metres. The computer is USB rechargeable with up to 40 hours’ continuous use in dive mode.
Given the cross-over between the two forms of diving, a mid-range RRP of £339 in the UK makes it a reasonably-priced option for people who enjoy both activities, and the broad range of features with a rugged design might make it a good stand-alone consideration for divers who enjoy more than just diving.