Crystallised Essence of Time
A light-powered watch with
annual accuracy of ±1 second
Essence of Time
The most precise light-powered watch in the world*
with annual accuracy of ±1 second.
The crystallisation of CITIZEN’s technology,
craftsmanship and philosophy of watchmaking,
all refined into the Caliber 0100.
*As of February 2019, for an autonomous analogue quartz watch, according to research by Citizen Watch Co., Ltd.
Caliber 0100 Special Movie
The second hand of a watch counts out
31,536,000 seconds every year.
A watch with accuracy of ±1 second per year
must mark those millions of seconds with annual
deviation within just one second.
To mark the seconds with such perfect purity,
all the watch’s individual components
need to be made with greater precision.
AQ6010-06A18K White gold
In this limited edition, CITIZEN’s passion for pioneering the future of the watch comes together with a design that fuses universality and innovation. The case, band and the crown have sharp edges to evoke a crystal motif. The simple dial has an ivory finish which elegantly communicates the concept of ultraprecision with accuracy of ±1 second per year.
This limited edition expresses solid, reliable ultraprecision through the combination of a lustrous black dial, a titanium case and a metal band with a crystal motif. The dial absorbs light through an array of tiny apertures to mark the individual seconds with perfect precision.
This limited edition has a mother-of-pearl dial evoking the limitless scope of time in the natural world. The contrast between the mother of pearl pattern formed over many years and the second hand marking each precise second is a visual metaphor for the way time passes into eternity, moment by moment. It also makes this watch uniquely beautiful.