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Citizen eco drive problems
Citizen eco drive problems













While the crown for the internal bezel is unsigned, the other crown at the 3 o’clock location is engraved with the Promaster collection’s double arrow logo, and it is used to access the movement. However, the outer bezel is actually fixed, and rotating the internal slide rule scale is instead done by turning the secondary crown located on the side of the case at the 2 o’clock position. Everything about its appearance suggests that the bezel would rotate and be used to operate the internal slide rule scale located on the underside of the crystal, similar to how the bezel operates on something like a Breitling Navitimer. The bezel fitted to the Citizen Promaster Nighthawk BJ7138-04E features a black PVD finish and prominent diagonal grooves running around its perimeter. One theory I’ve heard is that this is intentionally done due to the slightly higher impact resistance of certain types of mineral glass (despite being less scratch resistant), although I think most collectors would still prefer to have a sapphire crystal whenever possible. Personally, I would have preferred a sapphire crystal, although Citizen has a habit of fitting mineral crystals to many of its Promaster sports watches, despite using sapphire crystals on other models at significantly lower price points. Just like the original Nighthawk, the new version features a mineral glass crystal protecting its dial, while the reverse side of the case gets fitted with a solid screw-down stainless steel caseback.

citizen eco drive problems

Crafted from stainless steel, the case itself measures 42mm in diameter by 13mm-thick, with a lug width of 22mm (Citizen actually lists this measurement as 21.97mm), and an overall lug-to-lug distance of approximately 47mm. BJ7138-04E) draws its design inspiration from stealth helicopters, and it features thick angular lugs with brushed sides and large polished top surfaces. While the original Nighthawk offered a fairly traditional overall case profile, the new Citizen Promaster Nighthawk (ref. After more than a decade of production, Citizen finally updated the Promaster Nighthawk in 2020, and while the new model offers much of the same core package when it comes to its functionality and specifications, it also represents a significant aesthetic departure and includes a number of notable changes. However, with a highly legible display and more-than-generous water resistance, the Nighthawk ultimately garnered a diverse following of dedicated fans among numerous different demographics who all appreciated the watch for its function-forward design and rugged construction.

citizen eco drive problems

At its core, the Nighthawk is a dual-timezone pilot’s watch with a slide rule bezel and solar Eco-Drive movement. The original Citizen Promaster Nighthawk was one of the early darlings among online watch enthusiasts, and it was frequently a top recommendation on various forums due to its feature-packed design and budget-friendly price point.















Citizen eco drive problems