Baselworld 2019 - Citizen announces Calibre 0100 Watches ±1 sec. annually

Last year at Baselworld Citizen announced the development of a new highly accurate Eco-Drive caliber the 0100. This calibre commemorated the 100th year anniversary of Citizen and was rated at an amazing ±1 second annually without adjustment from any external source. The prototype watch was presented as a pocket watch in a sapphire crystal case that surrounded a simple white dial. The dial had markers at 12, 3, 6 and 9 o’clock that were shaped like quartz crystals and the end of the seconds hand also has a crystal shaped design.

More details about the original prototype, the technology used in the caliber 0100 movement, and the history of Citizens high accuracy quartz watches can be found here - Citizen Calibre 0100 - ±1 Second Annual Accuracy.

When announced last year Citizen stated that the 0100 movement was a prototype and that “While the Cal.0100 will not be available for sale to the public, the accuracy and technology inside the movement will be introduced in future models, set to launch in 2019.” Excitingly at Baselworld this year Citizen has announced that, not just technology developed for the prototype but, watches utilizing the 0100 movement will be coming to market this year.

There will be three limited editions released that will employ the 0100 movement and they will be released under “The CITIZEN” branding in the Japanese market. Within their home market the range of models under the brand of “The CITIZEN” is recognized to be the top end of Citizens range and includes Eco-Drive as well as traditional high accuracy quartz models.

The first of the 0100 based watches announced is the AQ6010-06A, a white gold cased model with an ivory dial. The dial and crown reflect the quartz crystal shape that was utilized in the prototype model last year. Visible through a sapphire crystal case back the striped finish of the black, discolouration- and corrosion-resistant ruthenium plates of the calibre 0100 can be seen. This model will be a limited edition with 100 units produced.

Model: AQ6010-06A
Limited Edition: 100
Case Material: 18K white gold
Movement: 0100
Power Reserve: 6 months on full charge (about 8 months in Power Save mode)
Crystal: Dual spherical sapphire glass with anti-reflective coating
Water resistance: 5 bar
Diameter: 37.5mm
Thickness: 9.1mm
Price: US$16,800

The other two models in the range are provided in Super Titanium that utilizes Citizens proprietary Duratect α surface hardening technology. This Duratect α treatment is applied to the case and bracelet and provides an alloy coating with a Vickers hardness rating of more than 2,000Hv. By comparison stainless steel has a rating of approximately 200Hv. The AQ6021-51E is provided with a black dial while the AQ6020-53X has a mother-of-pearl dial. Both models are limited editions with the AQ6021-51E having 500 units and the the AQ6020-53X limited to 200 units worldwide.

Model: AQ6021-51E
Limited Edition: 100
Case Material: Super Titanium (Ti with Duratect α treatment)
Movement: 0100
Power Reserve: 6 months on full charge (about 8 months in Power Save mode)
Crystal: Dual spherical sapphire glass with anti-reflective coating
Water resistance: 5 bar
Diameter: 37.5mm
Thickness: 9.1mm
Price: US$7,400

Model: AQ6020-53X
Limited Edition: 100
Case Material: Super Titanium (Ti with Duratect α treatment)
Movement: 0100
Power Reserve: 6 months on full charge (about 8 months in Power Save mode)
Crystal: Dual spherical sapphire glass with anti-reflective coating
Water resistance: 5 bar
Diameter: 37.5mm
Thickness: 9.1mm
Price: US$7,400

It is fantastic to see companies pushing the limits as to what is able to be achieved in technology as the accuracy of quartz movements has not really improved since the late 70’s and early 80’s when ±5 seconds per year movements were available in standard commercial models. It will be interesting to see if this technology is expanded even further to more models in the Citizen range in the future.

Other Citizen Baselworld Announcements

Baselworld 2019 Announcement - Citizen Promaster 30th Anniversary