Promaster Diver
Promaster Diver
$396.00 MSRP $495.00

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Promaster Diver

Promaster Diver


$396.00 MSRP $495.00

Citizen Eco-Drive Promaster Professional Diver is used for mixed gas diving with its 6mm non-reflective curved crystal, ratcheted elapsed-time bezel, screw-back case & screw-down crown, and reinforced urethane band and extender, with a carrying case for the wetsuit strap extension. Crafted in stainless steel with luminous accents, and 300M WR. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number B873.

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We stand by the quality and craftsmanship of our timepieces. Every purchase comes with our 30-day, money-back guarantee so that you can be sure your new Citizen timepiece meets your expectations. We offer free returns for added convenience. 

Our 5 Year Limited Warranty accompanies your purchase on, Citizen retail stores, and authorized Citizen dealers. CZ Smart smartwatches are covered by a 2 Year Limited Warranty


Our Five-Year Limited Warranty about the Citizen 5 Year Warranty

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Mens, Strap


Black, Luminous Hands and Markers

Case Size (mm)


Case Material

Silver-Tone, Stainless Steel, Promaster Crown


WR300/30Bar/999ft [Swimming, Showering & Snorkeling]


Anti-Reflective Mineral Crystal


B873, 3 Hand, Date

Setting Instructions FOR CALIBER B873
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Promaster Diver is rated 4.6 out of 5 by 24.
Rated 5 out of 5 by from Best watch I have ever owned I was issued this watch in 2005 after completing a very difficult military school. I have had this watch in every deployment I went on from 2005 till I retired from the military in 2012 and continued to deploy as a contractor with watch. It has been through some of the harshest environments on the planet. Still going strong, after 17 years I am just now Dec 2017 having to replace the watch band..If you want a watch to stand the test of time I fully recommend the BJ8050-08E. My son who is now 22 has asked for me to make sure he gets the watch when I check out, it is now in my will.
Date published: 2017-12-06
Rated 5 out of 5 by from AWESOME Watch I just received this watch a couple days ago. What a AWESOME Diver watch. Its very rugged looking, but at the same time very comfortable to wear. It's a heavy watch, so for some people would feel uncomfortable wearing it. I love the look and style of it. Very easy to read the face numbers and the lamination is also very good. I also really like that it's a Solar style watch (No batteries to change). I would highly recommend this watch to anyone in the market for a GREAT Diver's Watch at a very reasonable price. Good job Citizen, you got me for a customer for life!
Date published: 2020-01-05
Rated 5 out of 5 by from Years & years & years of reliable service I bought this over 14 years ago. It has rarely left my wrist during waking hours. It’s kept excellent time and endured a beating over these many years. It deserves “6” stars!
Date published: 2019-08-06
Rated 5 out of 5 by from Stands the Test of Time I bought my watch 12 years ago and it has not missed a beat. This watch has accompanied me on hikes, scuba dives, kayaking, paddle boarding and surfing. It has and will withstand the test of time
Date published: 2019-05-27
Rated 5 out of 5 by from ECOZILLA This is great professional dive watch, water resistant to 300 meters and comes with a strap extender to fit over your wet suit. But this watch isn't just for diving, it has a cult like following and people customize this to fit their personal style. Introduced in 2004 this remains a very popular watch today.
Date published: 2017-03-15
Rated 5 out of 5 by from Durable and Stands out! This watch is one of the toughest watches I have owned, it looks good around my wrist and you don’t even have to replace the battery it’s charged by the sun
Date published: 2020-01-08
Rated 5 out of 5 by from Amazing watch! Tons of toughness and lots of personality, on one very durable and reliable watch. I bought mine 14 years ago and love it like the first week. Not suitable for all ocasions, but if you want a daily usage sports rough watch, this one will make you very pleased.
Date published: 2019-12-11
Rated 3 out of 5 by from I’ve owned Better! I’m a commercial diver and dive in various environments. First time I took this watch on a murky dive I noticed the bezel won’t spin anymore, most likely from the murky stuff? I contacted Citizen multiple times and have not received a reply back. Last watch I buy from them unfortunately as I own 5 of them.
Date published: 2018-03-25
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Is this watch fully made in Japan?

Asked by: TheCAN
YES !!
Answered by: MANOS
Date published: 2018-12-04

On the Eco-Zilla, how does the CURVED crystal benefit the watch? AND .. Is this crystal extremely hard to scratch? Thank you! 

Asked by: Matt48
I bought the Eco-Zilla about a year ago.I stumble through the house when I get up have banged it on door knobs and it hasn't been scratched yet the crystal works
Answered by: J mcdonald
Date published: 2018-11-13

How can I get pulyrethane strap buckle ?  

Asked by: Carlostoro
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