New: Citizen ups the ante with an Eco-Drive model with 365 days of running time

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Featuring the new Citizen Eco-Drive 365 – a watch running on solar energy, and featuring a full 365 days of running time on a full charge.

Press Release details with commentary in italics.

New: Citizen Eco-Drive 365

The new Citizen Eco-Drive 365 will be retail as follows:

  • BN1015-52E –  USD530
  • BN1014-55E – USD480
  • BN1010-05E – USD875


Citizen’s Eco-Drive solar watches are class leading, and represents best of breed. And they stretched the goalpost even further with this new Cal. E365 movement which is able to run a full 365 days on a full charge. This is through a dial which does not look like it is laid full of solar panels, but a rather beautiful dial. Three new references are released in this novelty announcement. Two in regular production and one limited edition model. All three novelties share the same case design and dimensions.

The limited edition model features an aesthetic which is a good approximation to the 1973 Citizen Quartz model, and features lab grown rubies for the cardinal hour markers of 12/3/6/9.

While the regular production models are available in two versions – one with a full black ion-plating and another in a two tone styling with black ion-plating on the bezel and the case and bracelet in silver stainless steel finishing.

All three are based on the 1970s angular design architecture makes the novelties even the more endearing to our eyes. We have requested for the prototypes, and will share our full review when we have received them and done our own photography.

Release details

In an era of environmental change and diversifying values, CITIZEN Watch aims to offer an even more enjoyable experience of time to even more people around the world. As part of these efforts, CITIZEN has developed the new Caliber E365 Eco-Drive*1 movement (Cal. E365) featuring a running time of 365 days on a full charge. These three new Eco-Drive 365 models offer fresh, new interpretations of designs from the CITIZEN Design Archive along with the new Cal. E365 movement. All three models, including a limited-edition model, will be released in Fall/Winter 2023 as part of CITIZEN’s Global Collection.

* Price and launch date may be subject to change.

CITIZEN Eco-Drive 365/BN1015-52E

Eco-Drive watches for everyone, everywhere 

The light of the sun shines down equally on everyone, no matter where we are in the world. This light is freely available to all and powers all of CITIZEN’s Eco-Drive watches, perfectly encapsulating CITIZEN’s corporate philosophy of “Loved by citizens, working for citizens.”

In the early 1970s, the world was in the midst of an energy crisis, and the engineers at CITIZEN looked to sunlight as an innovative, non-polluting clean energy source. This was the genesis of Eco-Drive, grounded in CITIZEN’s determination to provide the world with environmentally-friendly watches that do not need regular battery replacement. The world’s first light-powered analog watch was launched in 1976. Since the launch of this groundbreaking model, CITIZEN has continued to pioneer light-powered watch technologies, advancing them to the point where even small amounts of light can be converted into electricity to power Eco-Drive watches. CITIZEN has also worked to enhance the functionality and aesthetic appeal of each subsequent Eco-Drive model, and Eco-Drive watches are now worn by people in 140 countries and regions around the world.

Our world is changing rapidly as we face a range of environmental issues including climate change and natural disasters, and our values and ways of thinking are becoming more diverse. CITIZEN is adding these new Eco-Drive 365 models to its global line-up to emphasize the appeal of Eco-Drive watches powered by clean energy to everyone who wants to build a brighter future.

Uniquely beautiful, innovative new designs

The Cal. E365 movement inside these Eco-Drive 365 models further enhances the advantages of CITIZEN’s proprietary Eco-Drive – low power consumption and long running times – allowing each watch to run for 365 days on a full charge. The movement maintains the standard 27 mm diameter with even higher power generation efficiency. The pulses used to move the hands have also been refined to allow new and exciting design possibilities.

The designs of the watches are inspired by a quartz watch model with an eye-catching original design launched by CITIZEN in 1973. This iconic design from half a century ago was carefully studied, adapted, and given a fresh, new interpretation. The iconic lines of the new case utilize CITIZEN’s stainless steel processing and polishing know-how. The dial, used to generate power for the watch, has also been updated using the latest manufacturing techniques. The limited-edition model features lab-grown rubies*2, echoing back to the indices of the original 1973 design. The leather strap is produced by an LWG-certified*3 tanner. After 50 years, CITIZEN’s iconic 1973 quartz model has been reborn as an Eco-Drive watch, reflecting new potential and evolutionary possibilities for watches in a new era.

Regular Models

The BN1015-52E offers a modern, streamlined look with an all-black color scheme, and the BN1014-55E features the distinctive silver tones of stainless steel.

The stainless steel case of these distinctive models combines clean, straight lines and flat surfaces with ridgelines at 12 and 6 o’clock that integrate smoothly with the lines of the bracelet.

The latest manufacturing techniques were used to create the sparkling dial that generates power for the watch. Four types of glittering accents with different colors and sizes were combined to create a surface inspired by an endless starry sky and the innate beauty of our planet. The metal indices are located on the outer ring rather than the dial to give the dial surface a sense of depth and breadth. The vertical lines on the case are accented by the stylish facets on each side and the sleek brass hands.

BrandCITIZEN Eco-Drive 365
LaunchAutumn/Winter 2023 (scheduled)
Case/BandStainless steel(Black ion-plated)Stainless steel (Partial black ion-plated) /Stainless steel
GlassSapphire glass with anti-reflective coating
Case diameter / thickness42.5mm /11.1 mm(design specification only)
SpecificationsCal.E365 / Accuracy of ±15 seconds per month / Eco-Drive runs for one year on full charge   ■ W.R. 10 BAR

■Limited-edition Model

 The visually appealing ridges of the unique case, the ruby red indices on the eye-catching dial, and the leather strap hark back to the distinctive look of the CITIZEN Quartz EFA, released in 1973. The indices are accented by four CRESCENT VERT*4 lab-grown rubies. Each gemstone has superior purity and transparency and a vivid red color with a slightly purplish hue shared by the finest natural rubies. The strap uses LWG-certified leather.

After 50 years, CITIZEN’s iconic 1973 quartz model has been reborn as an Eco-Drive watch, reflecting new potential and evolutionary possibilities for watches in a new era.

BrandCITIZEN Eco-Drive 365
LaunchAutumn/Winter 2023 (scheduled)
Limited quantity1200 (Worldwide)
CaseStainless steel
BandCalf Leather(LWG-certified)
GlassSapphire glass with anti-reflective coating
Case diameter / thickness42.5mm /11.1mm(design specification only)
SpecificationsCal.E365 / Accuracy of ±15 seconds per month /  Eco-Drive running for one year on full charge ■ W.R. 10 BAR


  1. Cuentatiempos on

    Perfect beauties for wide wrists.
    now, fuss in vain: +-15 a month make Casios of 30 bucks. And Citizen already has calibers that last 2.5 years and up to 7 years with a load like the U70. On the negative side, Citizen keeps hidden the nomenclature of its Eco-drive accumulators and also that some of them fail and have to be changed. It’s also bad that, except for their professional Diver watches, they have followed the trend of rear pressure covers in all their current collections.

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