



Tsuki-yomi A-T BY1010-57X
When breakthrough technology and spectacular design meet, the Tsuki-yomi A-T is reading the moon. It’s... the world’s first moonphase watch combined with atomic timekeeping innovation from Citizen, and this 30th Anniversary model is nothing short of impressive. The styling embodies the moon’s surface and a window at 6 o’clock displays the current moon phase. The timepiece measures 43mm in a silver-tone Super Titanium™ case, where sharp faceted edges pair with an elevated design throughout for an eye-catching aesthetic on the wrist. The green dial works in tandem with black accents and silver-tone touches for a display that’s as handsome as it is legible. In addition to its running time, the watch features a moon phase display, world time in 24 time zones, a perpetual calendar, and day-date functionality. Powered by Citizen’s proprietary Eco-Drive technology to provide light-powered vitality without ever needing a battery. Water resistant up to 100 meters. Caliber H874.
Technical Data
* Products will ship in 3 to 5 business days
Return and Exchange Policy
Effective Date: January 1st, 2025
Thank you for shopping with Diamonds of London. We strive to provide high-quality watches and excellent customer service. If you are not completely satisfied with your purchase, we are happy to assist with returns under the following conditions:
Return Eligibility:
- Items must be returned within 14 days of the delivery date.
- The item must be unused, unworn, and in its original packaging with all tags, manuals, and accessories included.
- Items that show signs of wear, damage, or have been resized, engraved, or altered in any way are not eligible for return.
- Clearance, final sale, or custom-made items cannot be returned.
Restocking Fee:
- All returns are subject to a 20% restocking fee, which will be deducted from your refund.
Return Process:
- Contact our customer support team at sales@diamondsoflondon.com with your order number and reason for return.
- Securely package the watch and ship it back using a trackable shipping service. The customer is responsible for return shipping costs.
- Once received and inspected, a refund will be issued to your original payment method, minus the 20% restocking fee. Please allow 10-12 business days for the refund to process.
Exchanges:
- We do not offer direct exchanges. If you wish to exchange an item, please return the original product (subject to the restocking fee) and place a new order.
Damaged or Defective Items:
- If you receive a damaged or defective watch, contact us within 48 hours of delivery with photos and a description of the issue. We will provide a replacement or full refund at no additional cost.
For further assistance, please reach out to our customer service team at sales@diamondsoflondon.com or call us at 210-524-7224.
We appreciate your business and thank you for choosing Diamonds of London!
Choose options



