Custom Watch Strap for Hermès Heuer H

There are 2 ways to find out if your Cartier Tank is a Must or a Solo model:

1. Check the case design and dial details
Tank Must: Usually features minimalist dials without a date window, a Cartier logo, and classic Roman numerals. Most Tank Must watches have a solid caseback and no visible screws on the bezel.
Tank Solo: Often has a date window (in Large and Extra-Large sizes), blued-steel hands, and a slightly thicker case profile. The Tank Solo frequently includes a brushed case side and polished bezel contrast.

2. Check the model number
The model reference number is engraved on the case back.
Your warranty card, certificate, or purchase receipt will also list the model reference, which you can look up to confirm whether it is a Must or a Solo.

Examples of model references:
Tank Must:
WSTA0041
WSTA0042
WSTA0043
WSTA0052

Tank Solo:
W5200003
W5200013
W5200028
W5200024

There are 2 ways to find the case size of your Cartier Tank watch:

1. Use a digital caliper or ruler to measure the lug width (the distance between the inside of the lugs where the strap fits):

Cartier Tank Must:
16 mm lug width – Small model
19 mm lug width – Large model
23 mm lug width – Extra-Large model

Cartier Tank Solo:
17 mm lug width – Small model (some references may measure very slightly larger, e.g., 17.5 mm)
20 mm lug width – Large model
22.5 mm lug width – Extra-Large model

2. Check the model number:
The model reference number is engraved on the case back. Your warranty card, certificate, or purchase receipt will also list the model reference, which indicates whether your watch is a Tank Must or a Tank Solo, and the size.

Examples of model references:
Tank Must:
Small: WSTA0041
Large: WSTA0042, WSTA0052
Extra-Large: WSTA0043

Tank Solo:
Small: W5200003
Large: W5200013, W5200028
Extra-Large: W5200024

To measure the buckle width, use the same method as measuring the lug width. Simply measure the distance between the two ends of the buckle where it attaches to the strap. This ensures the buckle width matches the strap for a secure and proper fit. Use a ruler or caliper for precise measurement, typically in millimeters.

Watch our strap changing guide here.

Unfortunately, custom straps are made from scratch according to the specifications you provide. As a result, we are unable to change the size or issue a refund once the item has been crafted. Therefore, if you have any questions regarding the measurements or sizing of your strap, please consult us via the contact us page or whatsapp us at +65 89050419 before placing your order.

This is a custom-made product. Upon receiving your order, we will commence sourcing and preparing the materials, after which our craftsmen will handcraft your item. The production process requires approximately 6–8 weeks. We appreciate your patience as we create your product to your specifications.

Our watch straps are crafted using only the finest premium-quality materials. We take great pride in the craftsmanship and durability of our products, and we stand firmly behind their quality. If you experience any issues with your strap due to a manufacturing defect within 30 days of purchase, we will replace it at no additional cost to you.

Please note that this warranty does not cover normal wear and tear, or damage resulting from accidents, misuse, or neglect.

Standard Production: 6-8 weeks 
Express Production: 2 weeks

Please note production time does not include delivery time. Please refer to our shipping page for estimated delivery time here.

Have a question? Reach out to us via the Contact Us page or WhatsApp us at +65 8905 0419 (Custom Strap Specialist Line).