AT9016‑56H
Eco-Drive A-T Eco-Drive Grey Dial Stainless Steel Watch
Lug width: 23 mm
Source: MakerCase size: 43 mmBlue dialCase material: Stainless steel
- Attachment
- classic lugs
- Status
- Listed by the maker
The story · Since 1973
The story of the Citizen Eco-Drive
- 1973 to 1976 After the oil shock, sunlight The 1973 oil shock pushed Citizen to look for a power source that would never need replacing.
- 1986 Eight days instead of two Light-powered watches of the time stopped after about two days without light.
- 2000 to 2011 Radio waves, then satellites Citizen paired Eco-Drive with radio time signals in 2000.
- 2016 Thinner than three millimetres For the technology's 40th anniversary Citizen released the Eco-Drive One, with a 1.00 mm movement in a 2.98 mm case, the thinnest light-powered analogue watch according to Citizen.
- 2019 to 2023 One second a year, one year per charge In 2019 Citizen reached an annual accuracy of plus or minus 1 second with an Eco-Drive using an AT-cut crystal.
- 2026 Fifty years under the dial Citizen marked 50 years of light-powered watches with the Eco-Drive Photon, whose dial is inspired by the double-slit experiment, and announced a gala at the Guggenheim Museum in New York.
100 million+
batteries Citizen says Eco-Drive has kept out of landfills since 1976
Worn by
Read the full storyHide the story
100 million+batteries Citizen says Eco-Drive has kept out of landfills since 1976
2.98 mmcase thickness of the 2016 Eco-Drive One, around a 1.00 mm movement
365 daysrunning time on a full charge of the Caliber E365 (2023) and Caliber E036 (2026)
200 hoursrunning time of the 1986 Analog with Solar Cell, when rivals managed about two days
Chapters
- 1973 to 1976
After the oil shock, sunlight
The 1973 oil shock pushed Citizen to look for a power source that would never need replacing. In 1976 it launched the Crystron Solar Cell, the world's first analogue quartz watch powered by a solar cell. It was expensive, yet Citizen says it was especially well received in Germany.
- 1986
Eight days instead of two
Light-powered watches of the time stopped after about two days without light. Citizen set itself the goal of a watch that would not stop in normal daily use and released the Analog with Solar Cell, which ran about eight days (200 hours) on a full charge.
- 2000 to 2011
Radio waves, then satellites
Citizen paired Eco-Drive with radio time signals in 2000. In 2011 it announced the Eco-Drive Satellite Wave, the world's first light-powered analogue watch set by satellite signals.
- 2016
Thinner than three millimetres
For the technology's 40th anniversary Citizen released the Eco-Drive One, with a 1.00 mm movement in a 2.98 mm case, the thinnest light-powered analogue watch according to Citizen. Almost every part of the movement was redesigned, and Citizen used cermet for the limited model's case and the other models' bezels so the watch would resist flexing.
- 2019 to 2023
One second a year, one year per charge
In 2019 Citizen reached an annual accuracy of plus or minus 1 second with an Eco-Drive using an AT-cut crystal. In 2023 the Caliber E365 kept the standard 27 mm diameter but ran 365 days on a full charge, launched in three Eco-Drive 365 models inspired by the 1973 Citizen Quartz EFA.
- 2026
Fifty years under the dial
Citizen marked 50 years of light-powered watches with the Eco-Drive Photon, whose dial is inspired by the double-slit experiment, and announced a gala at the Guggenheim Museum in New York. A 650-piece Eco-Drive 50th Anniversary Edition with a hand-dyed washi paper dial joined The Citizen range.
Worn by
Naomi OsakaSport2018
Citizen brand ambassador from August 2018, she won the 2018 US Open and the 2019 Australian Open wearing Citizen Eco-Drive Bluetooth watches, and the 2020 US Open wearing her own signature Eco-Drive, the CB1101-03L.
Moments
2026. Citizen chose New York's Guggenheim Museum for a gala celebrating 50 years of light-powered watches, announced alongside the Eco-Drive Photon.
2020. Osaka won the 2020 US Open, her third Grand Slam, wearing the CB1101-03L signature Eco-Drive whose blue and yellow she chose herself; it carries her signature on the caseback and was limited to 5,000 pieces.
2019. Osaka took the 2019 Australian Open title with an Eco-Drive Bluetooth on her wrist, then wore new colourways at Roland-Garros (BZ4005-03E) and Wimbledon (BZ4000-07L).
2018. Naomi Osaka won the 2018 US Open wearing a Citizen Eco-Drive Bluetooth BZ4006-01E, after her appointment as Citizen Brand Ambassador in August 2018.
Designed by
Hideki Inoue (井上英樹)design director2013
Listed by the Good Design Award organiser as design manager in the design department of Citizen Watch's Citizen brand division for both 2013 award-winning Eco-Drive models.
大場晴也 (Citizen design department; romanised reading not confirmed by a source)designer2016
The Good Design Award organiser lists this member of Citizen's design department as the designer of the Eco-Drive One.
Awards
- 2017Good Design Award (Japan, G Mark) · Good Design AwardReference Eco-Drive One
The Eco-Drive One won a 2017 Good Design Award (No. 17G010015).
- 2013Good Design Award (Japan, G Mark) · Good Design AwardReference Eco-Drive Satellite Wave Air
The Eco-Drive Satellite Wave Air wristwatch won a 2013 Good Design Award (No. 13G010005).
- 2013Good Design Award (Japan, G Mark) · Good Design AwardReference Eco-Drive Altichron Cirrus
The Eco-Drive Altichron Cirrus won a 2013 Good Design Award (No. 13G010006) alongside the Satellite Wave Air.
Generations and strap changes
- 2026Eco-Drive Photon BJ6560-53W and BJ6569-59X
Two 5,000-piece editions for the 50th anniversary, with the Caliber E036 (365 days per charge, plus or minus 15 seconds a month) under a layered dial inspired by the double-slit experiment.
39.6 mm by 9.9 mm cushion-shaped Super Titanium case on an integrated matching bracelet with a micro-adjustment in the clasp.
- 2023Eco-Drive 365, BN1015-52E and BN1010-05E
First models with the Caliber E365, running a year on a full charge, in a 42.5 mm by 11.1 mm case; the limited BN1010-05E (1,200 pieces) uses lab-grown rubies as a nod to the 1973 Quartz EFA.
Ridgelines at 12 and 6 o'clock run into the steel bracelet on the regular models; the limited edition comes on LWG-certified calf leather.
- 2020Naomi Osaka Model CB1101-03L
A 5,000-piece radio-controlled Eco-Drive with world time, coloured by Osaka herself in sky blue and tennis-ball yellow, with the four Grand Slam cities highlighted on the dial.
36.0 mm Super Titanium case on a urethane band, delivered with a spare black urethane band.
- 2018Eco-Drive Bluetooth BZ4006-01E
The connected Eco-Drive that Naomi Osaka wore when she won the 2018 US Open, followed by BZ4005-03E and BZ4000-07L in 2019; Rescapement gives the blue model as 40.5 mm by 10.7 mm in titanium.
Citizen describes the BZ4005-03E as a Super Titanium case on a urethane band.
- 2016Eco-Drive One, Cal. 8826
A 1.00 mm movement in a 2.98 mm case, in a cermet limited edition of 800 pieces (AR5014-04E, USD 6,000) and three stainless steel versions (AR5000-50E, AR5000-68A, AR5004-59H, USD 2,600).
Citizen lists the limited AR5014-04E on black crocodile leather and the AR5000 and AR5004 versions on Duratect stainless steel bracelets; cases measure 38.5 mm and 39.0 mm.
- 1995Attesa Eco-Drive, Cal. 7870
Released in November 1995 at 28,000 to 43,000 yen, this model reached six months of running time from a full charge and, in Citizen's words, did much to spread Eco-Drive.
- 1976Crystron Solar Cell
The first analogue quartz watch powered by a solar cell, the starting point Citizen counts its Eco-Drive anniversaries from.