What a Tank Must WSTA0042 Sells for in Bangkok — October 2026
Tank Must returned to the Cartier lineup in 2021 after disappearing in the 1990s. The WSTA0042 prices at entry level for Cartier and is the small battery-quartz model (see the correction below).
Comparing it with the rest of the family? See Cartier Tank prices for every reference.
Estimated price bands as of October 2026. They are the median of six index and sold figures for the WSTA0042 (US$2,669–3,305): WatchCharts market prices of US$2,893 and US$2,963 (September 2026), Loupe US$2,669 and its 60-day sold average US$3,305 (October 2026), Wristcheck about US$3,000 and a US$2,990 sold listing at Gray & Sons. They are converted at ฿32.5/USD and cross-checked against Watchfinder and Bob's Watches asking prices. They are US and international market figures, not Bangkok transaction records. The Tank Must is among the most traded Cartiers in Thailand because it serves as the entry point for many buyers:
- Low ฿90,000 — 2021 references, worn, no box
- Median ฿95,000 — Full-set 2022–2023 with TH warranty
- High ฿110,000 — NOS 2024 with stickers
A correction on identity. Earlier versions of this page described the WSTA0042 as the Tank Must Large with SolarBeat. WatchCharts, Loupe and Wristcheck all list the WSTA0042 as the Tank Must Small: battery quartz, 29.5 × 22 mm, US retail US$3,300. The large quartz is the WSTA0041 (33.7 × 25.5 mm) and the SolarBeat Large is the WSTA0059. The prices on this page are for the WSTA0042. The SolarBeat notes below describe the WSTA0059, not this reference.
SolarBeat — Why Cartier Chose Quartz
Quartz inside a Cartier dress watch is divisive among traditionalists, but the Tank Must makes a deliberate case:
- 16-year battery-free — solar-powered cell beneath the dial
- Accuracy ±10 seconds/year — 100× more accurate than mechanical
- Lower service costs — Cartier's quartz service charges roughly half the mechanical fee
- Light weight — comfortable all-day wear
The trade-off: no horological soul that mechanical dress-watch collectors typically seek.
Tank Must vs Tank Louis Cartier vs Tank Française
| Reference | Movement | Size | Median Bangkok |
|---|---|---|---|
| Tank Must WSTA0042 | Quartz (battery) | 29.5×22mm | ฿95,000 |
| Tank Louis Cartier (Large) | Mechanical | 33.7×25.5mm | ฿295,000 |
| Tank Française mid | Quartz | 30.5×25.05mm | ฿165,000 |
| Tank Américaine large | Mechanical | 44.4×26.6mm | ฿385,000 |
Tank Must is the lowest-priced entry; Thai buyers commonly start here and upgrade to Tank Louis Cartier or Tank Américaine within 3–5 years. Only the WSTA0042 row was re-checked in October 2026; treat the other three rows as unverified.
What Bangkok Dealers Pay
| Scenario | Seller payout (2023 full set) |
|---|---|
| Full-set, TH warranty | ฿74,000–฿78,000 |
| Full-set, overseas warranty | ฿68,000–฿73,000 |
| No box, papers | ฿62,000–฿68,000 |
| Loose | ฿56,000–฿62,000 |
Dealers pay 78–82% — similar to Aqua Terra and Seamaster 300M.
Tank Must Thai Buyer Profile
Tank Must buyers in Bangkok tend to fall into a few groups:
- Female wearers (the 29.5×22mm WSTA0042 suits smaller wrists)
- Wedding or birthday gifts
- First Cartier purchase
- Business-casual everyday watch
WSTA0042 Authenticity Checkpoints
- Roman numerals — VII at 7 (matches Santos)
- "Cartier" secret signature — hidden in the "X" at 10 o'clock; the Tank Must does NOT include the secret signature (reserved for Tank Louis Cartier and above)
- Beaded crown set with a synthetic spinel cabochon — Cartier-specific blue
- Movement type — the WSTA0042 is battery quartz. The solar-dial check that used to be listed here applies to the SolarBeat WSTA0059, not to this reference
Price Movement 2022–2026
The 2022–2026 medians this page used to list had no source behind them, so they have been removed. The dated points we can source, converted at ฿32.5/USD:
- 24 June 2024 — Wristcheck market value about US$3,000 (about ฿97,500), 8.7% under the US$3,300 retail price
- 7 September 2026 — WatchCharts market price US$2,893 (about ฿94,000)
- 15 October 2026 — Loupe market price US$2,669 (about ฿86,700); Loupe 60-day sold average US$3,305 (about ฿107,400) on one sale
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Data sources: