Citizen Tsuki-Yomi Moon Phase 43mm solar (eco-drive) watch, silver dial
BY1010-57H
£699
Price at Goldsmiths, checked 28 October 2026. Prices can change: Goldsmiths' page has the final word.
43mmSolar (Eco-Drive)100 m water resistantSuper titaniumMen's
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Specifications
| Brand | Citizen |
|---|---|
| Model | Tsuki-Yomi Moon Phase |
| Reference | BY1010-57H |
| Gender | Men's |
| Style | — |
| Case size | 43mm |
|---|---|
| Lug to lug | — |
| Case material | Super titanium |
| Bezel | — |
| Dial colour | Silver |
| Strap | Super titanium |
Will 43mm suit your wrist? Check your size
| Movement | Solar (Eco-Drive) |
|---|---|
| Calibre | H874 (Eco-Drive, radio-controlled) |
| Power reserve | — |
| Water resistance | 100 m |
| Crystal | Sapphire |
| Thickness | — |
| Date | Day and date (perpetual calendar) |
| Guarantee | Citizen 5 Years Guarantee |
A dash means neither Goldsmiths nor Citizen states it on the pages we read, so it's left blank rather than guessed.

