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The Citizen Corso collection, a combination of functional simplicity with a touch of timeless elegance is powered by any light with Eco-Drive Technology. This model features a stainless steel case, sleek black leather strap with coordinating black dial. Additionally a 1/5-second chronograph and date. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number B642.

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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


Gray, Indices

Case Size (mm)


Case Material

Silver-Tone, Stainless Steel


WR100/10Bar/333ft [Swimming, Showering & Snorkeling]


Mineral Crystal


B642, 1/5 Second Chronograph Measures up to 60 Minutes, Date

Setting Instructions FOR CALIBER B642
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Corso is rated 4.3 out of 5 by 11.
Rated 5 out of 5 by from Amazing yet affordable watch After wearing this watch for a month, I have to say I'm very pleased with the quality. It has a sophisticated yet refined look and is great for everyday wear. The watch face is a lot lighter than the one depicted in the pictures, but I didn't have much of an issue with it and found a bond NATO strap that paired nicely. The only complaint I have is dents to the case after a minor impact with the table. All in all, I would highly recommend this watch.
Date published: 2018-11-22
Rated 5 out of 5 by from Amazing watch I got it for Christmas and has done nothing but please. Sleek. Accurate and works with any outfit.
Date published: 2018-12-30
Rated 5 out of 5 by from Very prestigeous, affordable price I didn't want to write a review but I found the previous reviews a bit harsh. I love my watch. beautiful still bold design and very easy to read. Eco drive feature is also really nice. I love it and recommend it.
Date published: 2018-07-18
Rated 5 out of 5 by from Great Everyday & Dressy Watch Excellent quality, nice feel, love the ecodrive. I referred 3 friends to citizen watches and they all purchased them. They never put one on and I insisted they do. Amazing designs, most are timeless styles. I met the VP at duty free Montreal airport, phenomenal person and amazing brand ambassador.. sold me even more on the watch I already had! great company. I have this watch and 2 other tag heuer that retail for approx 3,000 cad each... this watch is amazing.
Date published: 2019-02-17
Rated 5 out of 5 by from Love It!!! Bought it as a gift for someone and they love it! super simple and just a beautiful watch.
Date published: 2020-05-31
Rated 2 out of 5 by from Nice crown I tought about returning the watch. I wanted a solid black face watch & the glass is too thick.
Date published: 2018-05-25
Rated 2 out of 5 by from curts i bought this watch online, wasnt near what i thought it was, returned it, band was cheap, watch seemed well made, but didnt
Date published: 2017-11-20
Rated 3 out of 5 by from Website does not represent the true dial color The watch on the website has a dark gray/black face. The watch received had a light gray face. Although it was still a nice watch it was not the color I ordered so I returned it for a refund with no issues from Citizen. Still love their watches.
Date published: 2019-12-13
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Let me ask my citizen app for CORSO watches CA7000-04H yes or no, because I can't download it. Does this watch have any good apps for smartphones?

Asked by: HAU GIA CAT
It's not a smart watch, no there are no app for this watch.
Answered by: Unit
Date published: 2019-08-18
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