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Citizen

Citizen MT621 Rechargeable Battery 1.5V 295-5100, Authentic Spare Part

24,60 €
Citizen MT621 rechargeable battery 1.5V 2.5mAh (ref. 295-5100). Certified original component. Quick installation, reliable performance. 2-year warranty

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Specifications

Brand
Citizen
Reference
295-5100
EAN-13
0757222032400

The rechargeable Citizen MT621 battery (reference 295-5100) is the replacement component for Citizen watches equipped with this power system. Nominal voltage 1.5V, capacity 2.5mAh: this authentic spare part guarantees continuous operation of your watch without compromising movement reliability.

Authentic component vs market alternatives

Choosing an authentic Citizen rechargeable battery (295-5100) rather than a generic equivalent reduces the risk of premature failure, internal leakage or mechanical incompatibility. The MT621 is designed for the precise tolerances of the Citizen mechanism. A counterfeit part exposes your watch to movement damage not covered by the 2-year warranty.

Performance and battery life in use

Capacity of 2.5mAh: this rechargeable battery ensures consistent battery life according to the Citizen charging system of your model. Unlike standard batteries, the MT621 recharges partially through the movement of your wrist (Citizen Eco-Drive watches) or via a dedicated light source. Lifespan: 5 to 10 years under normal conditions of use, subject to natural wear from charge cycles.

Installation and manufacturer compatibility

Replacing the MT621 requires the intervention of a qualified watchmaker or Citizen after-sales service. This part is reserved for Citizen watches listed in the model documentation (check the original manual). Improper installation may damage the mechanism. 2-year warranty: covers only manufacturing defects of the component itself, not installation damage or harm caused by mishandling.

Frequently asked questions

How do I know if my Citizen watch really uses the MT621 295-5100 battery?
Consult the original user manual for your Citizen watch or contact official after-sales service with your model reference. The MT621 (295-5100) equips specific Citizen models; confusion with another battery can jam the mechanism or create a short circuit. Only an authorised watchmaker can identify with certainty the appropriate component
What is the difference between an MT621 rechargeable battery and a standard battery?
The MT621 is a rechargeable battery designed for Citizen Eco-Drive systems or equivalent. It recharges through wrist movement or light, eliminating frequent battery replacements. A standard battery is a disposable consumable. Using an ordinary battery instead of the MT621 will damage the movement's charging circuit
How long does an MT621 battery last before wear?
Under normal use, the MT621 rechargeable battery maintains its performance for 5 to 10 years. This duration depends on the number of charge cycles, light exposure (for Eco-Drive) and storage conditions. After this period, gradual loss of battery life is normal. Replacement by an authorised watchmaker is then recommended
Does the 2-year Citizen warranty cover this MT621 battery?
Yes, the MT621 (295-5100) benefits from the 2-year Citizen warranty on the component itself, covering only a manufacturing defect of the new product. This warranty does not cover natural wear after 5-10 years of use, installation damage, shocks, exposure to excessive moisture, or damage caused by improper storage
Should I have my MT621 battery replaced at Citizen or at an independent watchmaker?
Citizen's official after-sales service or an authorised Citizen watchmaker guarantee the use of original parts and compliance with assembly tolerances. An independent watchmaker can also perform the replacement if they have the authentic MT621 and appropriate tools. Always request an invoice mentioning the original part (295-5100) and the date of service

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