Cartier Tank Must Large WSTA0109 2025 NOS

Overview 

The Tank Must reintroduced in 2021 occupies a specific position in Cartier's Tank family: it is the entry point to the Tank design at stainless steel pricing, with quartz movement, and the iconic case architecture intact. The WSTA0109 is the Large iteration at 33.7mm by 25.5mm; within the Tank Must range, the Large provides the most balanced dial proportion for the Roman numeral layout and the chemin-de-fer minute scale. The current catalogue reference for this watch is WSTA0136, updated in 2026; the two are functionally identical, making this NOS piece an acquisition of the same watch at below current retail pricing.

The case is stainless steel, 33.7mm by 25.5mm, with the Tank's characteristic rectangular silhouette framed by vertical brancards. The silvered dial carries Roman numerals, a chemin-de-fer minute chapter ring, and blued steel sword-shaped hands; the beaded crown is set with a blue synthetic spinel cabochon, a consistent detail across the Tank Must family. The composition is Cartier's established Tank formula: symmetrical, typography-led, and without competing visual elements. Sapphire crystal above, slim profile throughout.

The movement is quartz. For the Tank Must, this is the correct specification: it allows the case to remain slim, requires no winding engagement, and delivers low-maintenance ownership that the Tank Must buyer is choosing when selecting this reference over the mechanical Tank Louis Cartier at a higher price tier. The watch is fitted with a black calfskin leather strap and polished stainless steel tang buckle.

NOS status means this piece is unworn, held in storage awaiting for its new owner. Papers dated May 2025 confirm recent production; the condition is equivalent to new. At RM13,000 against an RRP of RM15,100, the buyer acquires the current Tank Must Large specification at a meaningful discount. We are currently seeing WSTA0109 NOS examples at this level represent a straightforward acquisition: the same watch as the WSTA0136 now in Cartier's catalogue, at below the current retail price. New old stock, unworn, complete with original box and papers dated May 2025, at RM13,000.

Specifications

Brand :	Cartier
Model Name :	Tank Must Large
Reference :	WSTA0109
Material	Steel
Movement :	Quartz Movement
Case Diameter :	33.7mm x 25.5mm
Bracelet / Strap :	Interchangeable Grained Black Calfskin Strap
Features :	30m Depth rating, Hour and minutes

 

Condition

New Old Stock, Unworn Condition, Complete Original Set with Box and Papers dated May 2025.

Warranty

Eligible for 8 year manufacturers warranty