Inspired to the diving watches of the 1970s, the two new Longines Heritage Diver models - one with three hands and the other a chronograph - adopts a vintage cushion-shaped steel case with a diameter of 43 mm, just like the originals creations. The case is satin brushed except for the polished sides.
The black, satin-finish dial combines red detail with Super-LumiNova coated hour markers and hands. Both models features a bidirectional rotating inner flange with case back, crown and bezel screwed in to ensure water-resistance to 30 bar or 300 metres.
The three-hand model adopts the red colour for the minute hand and for the graduated scale from 0 up to 60, useful to calculate the time of immersion by synchronising the 12 o'clock hour symbol with the minute hand. The inner flange is activated using the crown at 2 o'clock. The movement is the self-winding mechanical movement Calibre L633.5 (based on the ETA 2824-2) beating at 28,800 vibrations per hour with a 38-hour power reserve.
In the chronograph version, the graduated scale on the flange goes from 60 down to 0 to calculate, for example, the decompression remaining time by synchronising a given point with the minute hand. The inner flange is activated using the crown at 10 o'clock. Inside, the 4Hz Calibre L651.3 is based on the ETA 2894-2 automatic movement with chronograph mechanism and offers 42 hours of power reserve when fully wound.
The new Longines Heritage Diver models, whose case back is engraved with the figure of a diver, are fitted on a black synthetic or rubber strap. The price for the Longines Heritage Diver three-hand (ref. L2.795.4.52.x) will be US$2,550 while the chronograph version (ref. L2.796.4.52.x) will retail for US$3,750.