Added a black diver's strap (20 bucks) and tempered glass (15 bucks). Am very happy with this watch (it's been 2 months since I received it). So many features and gadgets -- most I won't use, but nice to have just-in-case, I suppose. Field watch for end-times. LOL. Features I do use and/or appreciate: * bigger face with clear numbers * self-charging/ solar * EXACT time with multi-band 6 (auto syncing to atomic time) * dual-time for world time * 5 alarms -- great for reminders for regular things-to-do * luminescense is super, and excellent light -- both easy to read * hands-free light is AWESOME. In dark, if you shift/angle your wrist, the light automatically turns on -- great feature for when in bed (I rarely take off my watch - lazy) The user-manual is daunting. I learned all my watch's features from an awesome 52minute YouTube video titled, "Casio Protrek-PRW-6000...". (Amazon reviews won't let me link it, here). All of that video's content applies to this model PRW-6600Y. And, it was all broken down into chapters. Highly recommend watching this. No regrets with this purchase. Read more

model PRW-6600Y-1A9CR empecemos por lo malo rapido: la luz solo dura 3seg maximo, no hay manera de extender la duracion solo 1 o 3 segundos. al activar una funcion como el compass en la noche, el reloj tiene 24hrs pudieron program que la luz del display se quede encendida por minimo 3minutos para que encuentres tu camino puedas reflexionar la mejor ruta, 3segundos me parece una burla para este tipo de reloj de supervivencia, ojala que casio reflexione en lo que vende y mejor la duracion de la luz el reloj se llama "PRO TREK", esta en el nombre. ahora lo Bueno o Excelente. no pense que fuera a ser tan elegante, a mi no me importa yo lo usaria con traje, esta hermoso. el peso es minimo, es delgado para tener tanta tecnologia. el diseño de los numeros esta excelente el extensible apenas y suda un poco la muneca, con otros relojes suda mas pero no se que tipo de extensible sea y esta super fresco. Iluminacion: neta 3segundos, checa el video. peor no se activa al cambiar funciones. no se que estaba pensando casio, pero alguien tiene que ser despedido. la hora se ve con poca luz muy claramente, solo en plena oscuridad encenderias la luz del display. el Lume o el neobrite, dura toda la noche si lo cargas 15min, checa los videos, se ve genial. este reloj esta genial de dia, de noche no seria mi opcion para guiarme, la poca duracion de la luz no ayuda a nada, solo si estas en casa a salvo, usaria otro reloj para senderismo nocturno. aun asi 5 estrellas el reloj esta genial, se ve genial, la hora se ve claramente todo el dia, genial para mostrar en las parrilladas, pero no salgas a caminar con el te vas a perder. Read more

Nice watch, good size, easy to read during the day and its lights up well in the dark. Practical robust watch. Has many great features. I work in the construction industry and its holding up well. Read more

If you are a G-Shock fan and haven't tried Pro Trek yet - you owe it to yourself to try this watch. It's as fully-featured as a G-Shock, but looks less industrial and more "grown up". All Pro Treks are ABC watches (altimeter, barometer, compass) and this one has a Thermometer too. Throw in 5 alarms, timer, stopwatch, world time , and 100m water resistance and you have a do-it-all tool. My favorite aspect of this watch is the stealth look - the band, dial, and case are shades of black and gray, while the hands are bright white. The hands are easy to read, the dial a little less so. The underside of the band is glow-in-the-dark which creates a cool effect at night. The only negative? - this model doesn't have Multiband6 automatic time adjustment. This isn't a deal breaker, but there are some Pro Trek models which have that feature if you want it. Overall, this is a great watch and highly recommended. Read more

Excelente reloj, con todo lo que necesito para el campo, brújula, altímetro, barómetro, termómetro, además de hora mundial, cronómetro, 5 alarmas, despertador, carga solar, resistente al agua 10 ATM y ajuste de hora automático. Bueno, lo anterior ya todos los sabemos mirando la descripción pero lo que más me gusta de este reloj es la sobriedad tanto de sus materiales (¡bioplastico, wow!) como el diseño, perfecto para una caminata por senderos desconocidos e irte un viernes a tomar una cerveza con amigos, incluso para una reunión semi formal de trabajo con el project manager (eso es anecdota), y todo sin casi notarlo en muñeca pues es muy ligero y la correa muy cómoda, es grande pero no exceso (tal vez para muñecas pequeñas sí), la esfera en su parte analógica es muy legible y el lumen es muy bonito y dura bastante, la iluminación led no descepciona. Lo he usado ya en campo durante varios meses y con los sensores bien calibrados va muy exacto, CASIO nunca me ha fallado en fiabilidad, a pesar de que estoy lejos de la estación de hora atómica varias noches se ha conectado para adquirir la hora exacta sin necesidad de ponerlo en una ventana y orientado como dice el instructivo, si no se ha conectado hace mucho, siempre se puede adquirir manualmente la señal. Sólo espero jamás tener que comprobar el Tought MVT, por que además y por ponerle un contra, el cristal es mineral, así que de inmediato le puse un protector, pero insisto, este reloj es una bestia tecnológica, fiable y elegante. Read more

Nit a lot of room on the band. But adequate. Auto time sync with atomic clock works reliably in my apartment on the west coast. The auto light feature is good. Easy to read. Had it for a week and no power issues yet. Read more

Great outdoor watch.... Read more

Superb and Clear deal. Read more

big, bright , practical display, no battery required, everyday wear, radio controlled , but not applicable in Dubai Read more

Its too light weight and the straps should've been more rugged and heavy. Read more

pros -many functions such as ( altimeter, barometer, thermometer, compass, world clock, mobile application for clock adgustments and Aswell as tracking movements) really amazing watch overall. Cons - The watch Strap material did not really satisfy me - abit complicated to use. general rating (7/10) Read more

Includes all the functions required plus a step counter, very light on the hand, great quality, fit for formal and casual wear. Excellent watch very recommended Read more

Love this watch! It combines a sleek, slim design with an impressive array of features like a compass, altimeter, barometer, thermometer, alarms, stopwatch, etc., all packed into a non-bulky, understated case. It offers the practicality of an outdoor/adventure watch without the heavy or bulky look and feel, making it perfect for those who want functionality and style in one. Read more

In total I have purchased at least 12 of PRG-600 & 650 since Oct-2017.. Gifts for my colleagues, friends, relatives & family members, at least 12 pcs. It is just a little bit sophisticated to get use it, then it is hard to live without it.. Just ensure it is sold by a trustworthy seller then Buy it without hesitation.. Read more