Citizen Attesa Tsuki-Yomi A-T (BY1001-66E)
The Citizen Attesa Tsuki-Yomi A-T (BY1001-66E) is a current-production watch with a super titanium (proprietary) case, finished with duratect titanium carbide (silver). At 89 g it sits around the middle for watches in the guide, and is priced under the $1,445 median across the guide. The maker states no nickel-bearing steel at any skin-contact point, across the case, caseback and bracelet.
- Type
- Other
- Case diameter
- 41.5 mm
- Thickness
- 10.8 mm
- Origin
- Japan
- Movement
- Eco-Drive radio-controlled (multi-band)
- Caliber
- Citizen H874
- Power reserve
- Solar (about 2.5 years power-save)
- Complications
- Day-date, Worldtimer, Perpetual calendar
- Colour
- Grey
- Surface treatment
- Duratect titanium carbide (silver)
- Finish technology
- Surface hardening
- Caseback
- Titanium
- Nickel-free
- Maker states none
- Bracelet / strap
- Super Titanium bracelet, three-fold push clasp
- Matching bracelet
- Standard
- Crystal
- Sapphire (anti-reflective)
- Display back
- No
- Dial
- Grey dial, moon-phase subdial
- Dial colours
- Grey
- Lume
- Luminous hands and indices
- Availability
- Offered
- Status
- Current
- Not published
- Reference, Lug-to-lug, Hardness, Construction
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Frequently asked questions
Is the Citizen Attesa Tsuki-Yomi A-T (BY1001-66E) nickel-free?
On the maker's published specification, no nickel-bearing steel touches the skin: a super titanium (proprietary) case with a titanium caseback, plus a non-steel crown and bracelet and clasp. That is what the guide records rather than a test of the watch, so confirm the contact points with the maker before buying if you react to nickel.
What is the case material of the Citizen Attesa Tsuki-Yomi A-T (BY1001-66E)?
The Citizen Attesa Tsuki-Yomi A-T (BY1001-66E) has a super titanium (proprietary) case with a titanium caseback. This is confirmed against the maker spec.
What size is the Citizen Attesa Tsuki-Yomi A-T (BY1001-66E)?
It is 41.5 mm in diameter, 10.8 mm thick, and water resistant to 100 m.
How much does the Citizen Attesa Tsuki-Yomi A-T (BY1001-66E) weigh?
About 89 g (w/ bracelet).
How much does the Citizen Attesa Tsuki-Yomi A-T (BY1001-66E) cost, and is it available?
It is current-production and lists from $933.
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