1. Tell us about your Cartier Tank Must watch
Share the reference, condition and photographs of your Cartier Tank Must watch, including the box, papers and accessories if available.
Sell your Cartier Tank Must watch with a valuation tailored to its size, movement, dial and strap. We identify the reference and generation before assessing condition, originality and the documents supplied.
Get my free valuation
Models we buy
Match the full Cartier reference, size, materials and fitted bracelet or strap. Each guide shows the catalogue configuration for that reference.

















Share the reference, condition and photographs of your Cartier Tank Must watch, including the box, papers and accessories if available.
Arrange to send your item to us, or visit us in central London by appointment.
After inspection and price agreement, we make payment within 30 minutes by cash, bank transfer or cryptocurrency.
To get started, simply complete the form or contact us directly on WhatsApp or by phone to receive a free, no-obligation quote.
We offer payment within 30 minutes by bank transfer, cash or cryptocurrency after inspection and price agreement.
Tell us whether the watch is running and when it last received attention. Describe a stopped quartz watch as stopped rather than assuming it only needs a battery. Show the dial, crystal, case sides, strap and buckle. Disclose refinishing or plating work on an older example and any replacement strap or dial.
The more information you can share about your watch, the easier it is for us to provide an informed assessment of your watch.
What clients say
Buyers and sellers across the UK and Europe rate us 5.0 on Google. Quick replies, fair dealing, secure postage, and one specialist who sees the whole transaction through.
YOUR PIECE. YOUR CHOICE.
Sell your Cartier Tank Must Watch at our London showroom. Free, no-obligation specialist valuation. Payment within 30 minutes after inspection and agreement.
Payment within 30 minutes after inspection and price agreement.
Cash, direct bank transfer or cryptocurrency.
Arrange to send your item, or visit us in London by appointment.
No listing to create or buyer enquiries to manage.
You may receive more, depending on the buyer and any selling costs.
Take photos, upload them, write the description and answer questions.
Standard selling is free for UK private sellers. Business fees and optional charges can apply.
You receive funds after a sale, subject to payment processing or holds. Returns or disputes may need handling.
You leave it with the seller without an upfront purchase payment.
Finding a buyer can take weeks or longer.
Check the agreed commission and any additional charges.
Confirm when you are paid and how to retrieve an unsold item.
An initial estimate may be revised after an in-person inspection.
Ask whether the dealer can purchase your item outright.
Confirm bank transfer is available if you do not want cash.
Get the final price and payment arrangements confirmed before handing over your item.
Finer Lux is a small London dealership whose team brings 30 years of combined experience in the luxury watch and jewellery market. Every transaction is handled directly by one of our specialists — from your initial enquiry through inspection, the agreed offer and payment.
Standards
Checks appropriate to the individual watch or jewel, including identity, condition, originality and supporting documents.
Payment
Payment once inspection is complete and the final offer is agreed. Collection or delivery arrangements are confirmed with you.
Discretion
Private appointments in Belgravia. Speak directly with us about your piece and the arrangements for your enquiry.

Work with a specialist from your initial enquiry to the final offer. We discuss the piece, explain what needs checking and agree the next step with you. You can ask questions about the valuation before deciding whether to sell.
Free return if you decline our offer. For items above £30,000, our company courier returns the item at an agreed delivery time.
Combined experience
30 years
Your contact
A specialist
Google Reviews
Payment after agreement
30 minutes
4 Lowndes St, Belgravia, London
Mon-Fri, 9:00-17:30
Sat by appt.
Sell your Cartier Tank Must watch with a valuation tailored to its size, movement, dial and strap. We identify the reference and generation before assessing condition, originality and the documents supplied.
Reference WSTA0136 is one example in the Tank Must family. Different sizes, movements and dial designs need their own comparisons. A recent Tank Must, a SolarBeat version and an older Must de Cartier watch should not be grouped together simply because their cases look similar. Share the reference from your documents or case-back photograph.
The relationship between the case, dial and fitted bracelet or strap helps identify your Tank Must. Photograph these together and include the complete reference. Later replacement parts can change its appearance even when the collection name on the documents remains the same.
Explore 17 documented Tank Must references below. Each full Cartier reference opens a guide to its catalogue configuration, with specifications and photographs to help you identify the watch.
Compare the case dimensions, materials, movement and fitted bracelet or strap. References that look similar can describe different watches, so use the full code on your documents alongside photographs of the piece.
We also assess vintage, discontinued and unlisted references. Describe any changed components and send the documents you have. The directory covers verified examples rather than every watch Cartier has produced.
WSTA0109 Large model, high autonomy quartz movement, steel, leather
WSTA0107 Small model, quartz movement, steel
W4TA0031 Small model, quartz movement, steel, diamonds, leather
W4TA0036 Large model, high autonomy quartz movement, steel, diamonds, leather
W4TA0030 Large model, high autonomy quartz movement, steel, diamonds, leather
WSTA0121 Small model, SolarBeat™ photovoltaic movement, steel, steel bracelet
WSTA0135 Small model, quartz movement, steel, leather
WSTA0115 Large model, quartz movement, steel, leather
WSTA0122 Large model, SolarBeat™ photovoltaic movement, steel, steel bracelet
WSTA0137 Small model, SolarBeat™ photovoltaic movement, steel, calfskin strap
WSTA0106 Large model, high autonomy quartz movement, steel
WSTA0053 Extra-large model, automatic movement, steel
WSTA0108 Large model, high autonomy quartz movement, steel, leather
WSTA0138 Large model, SolarBeat™ photovoltaic movement, steel, calfskin strap
WSTA0113 Large model, high autonomy quartz movement, steel, leather
WSTA0141 Extra-large model, automatic movement, steel, leather
W4TA0035 Small model, high autonomy quartz movement, steel, diamonds, leatherTell us whether the watch is running and when it last received attention. Describe a stopped quartz watch as stopped rather than assuming it only needs a battery. Show the dial, crystal, case sides, strap and buckle. Disclose refinishing or plating work on an older example and any replacement strap or dial.
Tell us about movement work, dial restoration, polishing and replaced components. A service receipt documents past work but does not establish the present condition of your Tank Must. A stopped watch needs assessment rather than an assumption that it only needs a battery.
Send clear photographs, the complete reference if known and a description of condition for an initial estimate. Include the box, documents and accessories you can supply. We explain the next steps after reviewing your enquiry.
Arrange a private appointment in London or agree shipping and appropriate cover before posting. We inspect the piece, check its identity and condition, and explain the final offer. You decide whether to accept it.
After inspection and price agreement, payment is made within 30 minutes by bank transfer, cash or cryptocurrency, as agreed. Provide identification and your residential address, with purchase receipts where available. There is no obligation to accept.