Citizen has introduced two new additions to its Promaster Sky Navihawk family in Europe, and the headline change is not a colour or a case tweak. Both watches abandon the solar-powered Eco-Drive system that has long defined the Navihawk name and run instead on a brand-new mechanical automatic movement.
The pair, priced at €599 each — roughly $682 — are the NK0040-58L with a blue dial and the NK0044-57E with a black dial. They were unveiled on 25 September 2026, the same day Citizen also brought out the NJ0210-56E and a pair of two-tone automatics.
A Navihawk That Wants Winding, Not Light
For years, the Navihawk badge has been attached to watches that draw power from light and, in many cases, set themselves by radio signal. These two models strip that technology out entirely. There is no Eco-Drive cell and no radio-controlled timekeeping. In their place sits Caliber 8314, a new automatic movement with 21 jewels and a 60-hour power reserve.
Citizen rates the movement’s accuracy at -20 to +40 seconds per day, a figure that reflects the realities of a mechanical calibre rather than the near-perfect precision of a radio-synced quartz watch. The switch is the most consequential difference between these Navihawks and the ones collectors are used to.
Super Titanium Case and Bracelet
Both watches share the same architecture. The case and bracelet are made from Super Titanium, Citizen’s hardened titanium material. The case measures 40 mm across and 13.3 mm thick, and the watch weighs approximately 100 g on the bracelet.
That thickness is a deliberate trade-off. The Navihawk’s defining feature is its slide-rule bezel, an aviation tool that adds height to the case. Other Citizen automatics of a similar diameter are closer to 11 mm thick, so the Navihawk automatic carries a visible extra millimetre or two to accommodate its bezel.
The crystal is sapphire with an anti-reflective coating. A date window sits at 3 o’clock, and the dial uses Arabic numerals alongside stick indices. The case back is screw-down, and water resistance is rated at 20 bar.
What the Slide-Rule Bezel Does
The rotating slide-rule bezel is central to the Navihawk identity. It carries fuel, distance and unit conversion scales, allowing the wearer to perform calculations the old-fashioned way — by aligning numbers rather than tapping a screen. It is a pilot’s tool, and its presence is the main reason the watch is as tall as it is.
The bracelet is 20 mm wide at the lugs and closes with a double safety folding clasp.
Availability in Europe
Neither model is easy to find at the moment. On Citizen’s German site, the blue NK0040-58L is listed as unavailable, with a notification button replacing the usual buy option. The Dutch retailer WatchXL lists the blue model at €599 with an estimated wait of two to four weeks.
Both watches use the same movement and the same materials, so the choice between them comes down to dial colour. The blue reference is the one drawing the most immediate attention, given its status on the German Citizen site.
A Mechanical Detour for a Solar Line
The Navihawk name has typically signalled Eco-Drive solar power and radio-controlled time-setting. These two watches break that pattern. Whether the mechanical versions sit alongside the existing solar Navihawks or signal a broader shift is not clear from the launch itself, but the move gives buyers a different kind of Navihawk: one that trades light-powered convenience for a traditional automatic movement with a 60-hour reserve.
At €599, the pair sits in familiar territory for a titanium Citizen automatic with a slide-rule bezel. The specifications are identical across both references, and the only real decision for a buyer is whether to wait for the blue dial or take the black one.
