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The Timex Marlin Moon Phase is the most budget-focused option among the official listings compared here: the US leather-strap model TW2W51000 was listed at $209, and its bracelet counterpart TW2W51300 at $239. Both are 40 mm quartz watches. Moving to Citizen brings light-powered Eco-Drive and more calendar or timekeeping functions, but at substantially higher listed US prices. Which makes sense depends on whether you want the Marlin’s simpler moonphase design or are willing to pay more for those added features.
How the Marlin Moon Phase models compare
Timex lists two straightforward Marlin Moon Phase configurations in the US: a brown leather strap and a stainless-steel bracelet. Both have a 40 mm stainless-steel case and quartz analog movement. The key practical differences established by the listings are the band material and displayed price; the bracelet model’s listed band/lug width is 20 mm.
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| Model | US listed price | Band | Case and movement | Other stated details |
|---|---|---|---|---|
| Timex Marlin Moon Phase TW2W51000 | $209 on Timex’s US page, checked 2026-10-12; price and stock can change. Timex product page | Brown leather | 40 mm stainless steel; quartz analog | 20 mm band/lug width; acrylic crystal |
| Timex Marlin Moon Phase TW2W51300 | $239 on Timex’s US page, checked 2026-10-12; price and stock can change. Timex product page | Stainless-steel bracelet | 40 mm stainless steel; quartz analog | 20 mm band/lug width |
The same bracelet model illustrates why market matters: Timex’s EU page listed TW2W51300 at €209 on 2026-10-12. That is a separate regional price, not a direct currency conversion of the US listing. Timex EU product page
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What changes with a higher-priced Citizen?
Citizen’s examples add features and use Eco-Drive, which is powered by light. They are useful comparisons for shoppers who want more than a moonphase display, but their listed US prices put them in a higher price bracket than either Marlin model.
#1 Best Overall
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| Model | US price shown | Power and functions listed | Case and water resistance stated |
|---|---|---|---|
| Citizen Calendrier Moonphase BU0057-54E | $476, reduced from $595 on Citizen’s US page, checked 2026-10-12; the reduced price may change. Citizen product page | Eco-Drive caliber 8730; analog month, day and date; moonphase indicator | 44 mm case width; 100 m water resistance |
| Citizen Tsuki-yomi A-T BY1010-57H | $700, reduced from $875 on Citizen’s US page, checked 2026-10-12; the reduced price may change. Citizen product page | Eco-Drive; atomic timekeeping; moonphase; world time; perpetual calendar; day/date | 43 mm case; water resistance not stated on the consulted listing |
Which one fits your priorities?
Choose the Timex Marlin if you want a simpler, lower-priced option
The Marlin models are quartz analog watches with a moonphase display and a 40 mm case. The TW2W51000 pairs that format with brown leather, while the TW2W51300 has a stainless-steel bracelet. Their official US listings do not establish comparative accuracy, comfort, durability or service life, so those should not be inferred from the specifications alone.
Consider the Calendrier if you want more calendar information
The Calendrier adds analog month, day and date functions alongside Eco-Drive and moonphase. Its listed 44 mm case is larger than the 40 mm Marlin, and its displayed US price was higher. This is a feature trade-off rather than a like-for-like budget alternative.
Rank #2
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Look at the Tsuki-yomi as a feature-rich upper-budget reference
The Tsuki-yomi adds atomic timekeeping, world time and a perpetual calendar as well as Eco-Drive and moonphase. At its listed US price, it is best understood as an upper-budget comparison, not a close-priced substitute for the Marlin.
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Best Value
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Rank #4
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Rank #3
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What to verify before buying
- Check the model number: TW2W51000 is the leather-strap version; TW2W51300 is the bracelet version.
- Confirm the price and availability on the manufacturer’s page for your market. The figures above are manufacturer-page snapshots checked 2026-10-12, and Citizen’s shown reduced prices are not guaranteed to continue.
- Timex also lists a Marlin Moon Phase Multifunction TW2Y09900 at $239 on its US page, checked 2026-10-12. It is a separate 40 mm stainless-steel bracelet, quartz analog model; verify its current price and dial functions directly before comparing features. Timex product page
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
