Citizen
Tsuki-yomi A-T BY1010-57H
Ref. BY1010-57H · Citizen
Available to Order — sourced from our authorized distributor
Available Colours / Related Models
✓Authorized Canadian dealer
✓Official manufacturer warranty
✓Free Canadian shipping over $100 · Ships worldwide
✓Secure checkout — no account needed
Delivery: In-stock watches ship right away. If a watch isn’t in stock at our store, we order it directly from the manufacturer — please allow 4–6 weeks for delivery.
The Citizen Tsuki-yomi A-T is a radio-controlled Eco-Drive with a moon-phase display, syncing to the atomic clock for effortless accuracy. Reference BY1010-57H sets a grey dial in a 43 mm super titanium case beneath a sapphire crystal. For anyone who loves a moon-phase done cleanly.
Key features
- Light-powered Eco-Drive — never needs a battery
- Radio-controlled atomic timekeeping
- Moon-phase display
- Light-powered Eco-Drive
- 43 mm super titanium case
- Grey dial
- Sapphire Crystal
- 100 m water resistance
- Super Titanium strap
- Backed by Citizen's 5-year limited warranty
Specifications
| Brand | Citizen |
| Collection | Tsuki-yomi A-T |
| Reference | BY1010-57H |
| Movement | Eco-Drive |
| Case width (mm) | 43 |
| Case thickness (mm) | 10.87 |
| Case material | Super Titanium |
| Crystal | Sapphire Crystal |
| Water resistance | 100 m |
| Band type | Bracelet |
| Band material | Super Titanium |
| Clasp | Fold Over Clasp with Push Button |
| Dial colour | Grey |
| Warranty | 5-year Citizen limited warranty |
Authorized Canadian retailer
Golden Gate Jewellery is an authorized Canadian Citizen retailer. Every watch ships with the official Citizen 5-year warranty and free shipping on Canadian orders over $100 (worldwide delivery available) from our Toronto showroom. Need another colour or reference? As an authorized dealer we can check availability directly with Citizen — send us the reference and our team will help.
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