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Mass-produced#5 in familyOfficial press photos

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Movement tier: unclassified · caliber Cartier Cal. 1853 MC: automatic, in-house, 28,800bph, 42h PR; used in Tank Francaise; standard Cartier automatic with date module · 42h power reserve · family design Louis Cartier
Small case: suits slender wrists (under 6.5 in / 16.5 cm)
30 mm case. A compact, elegant wear. Particularly at home on narrower wrists where larger cases can overhang.

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Authentication

The integrated bracelet-to-case transition and the crown sapphire cabochon are the two highest-stakes checks on the Tank Francaise.

Known issues in the market
  • The integrated link-to-case transition develops gaps after impact or improper bracelet adjustment; this is irreversible without factory repair.
  • The blue sapphire cabochon on the crown is the most commonly damaged single component; loose or discolored cabochons are widespread on secondary market examples.
AreaWhat to checkWhat is correctRed flag
braceletIntegrated bracelet-to-case transitionSeamless transition from bracelet link to case on all four sides with no visible gapAny gap between case and bracelet at the integration point; repair or impact damage
crownBlue sapphire cabochon conditionUniformly blue, firmly set, undamaged cabochon with consistent color saturationLoose, chipped, discolored, or missing cabochon; most common damage point on Cartier watches
Common legitimate replacements
  • Crown sapphire cabochons are replaced; Cartier service replacements use genuine sapphire, aftermarket replacements may use glass.
  • Integrated bracelet links are not individually replaceable on some generations; a cracked link may require full bracelet replacement.
Expert resources: Cartier WJTA0046 product page. Cartier service documentation for Tank Francaise bracelet integration.

Authentication guide

Last reviewed June 2026

The Tank Française is defined by its integrated bracelet construction with square links that flow directly from the case. The bracelet link geometry and the case-to-bracelet transition are the primary authentication points. This reference is steel and yellow gold two-tone.

Known reproduction risks

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HIGH RISK

Integrated bracelet link geometry does not match the case width.

  • Slight visible step at the case-to-bracelet junction on non-original bracelets
  • Square links that are slightly rounded on reproductions rather than having the crisp square profile of originals
  • Surface finishing on non-original bracelets that lacks the alternating brushed/polished pattern of two-tone originals
MEDIUM

Crown is on the wrong side of the case.

  • Reproductions occasionally place the crown at 9 o'clock; the Tank Française correctly has the crown at 3 o'clock

Dial variants by era

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EraDescriptionIdentifiers
2000s to present (silver sunburst dial)Silvered sunburst dial with Roman numerals, blued hands, date window at 3 o'clock between the IV and V, and a fluted crown at 3 o'clock.
  • Date window positioned at approximately 3 o'clock; the numeral arrangement accommodates the date aperture with a slight spacing adjustment between IV and V
  • Fluted crown on the right side of the case at 3 o'clock, not on the left side -- the Française crown is on the right
  • Silvered sunburst dial: directional radial texture from center, visible under raking light
  • Applied "Cartier" signature at the 6 o'clock side with clean spacing
  • Blued sword hands identical in profile to other Tank variants

Service part flags

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Integrated bracelet and case junction

Original: The Tank Française bracelet is composed of square links with alternating polished and brushed surfaces (steel links brushed, gold links polished on two-tone versions). The first link connects directly to the case without a visible gap or seam. Link pins are not visible from the outer surface.

Replacement tells
  • Any visible gap between the end link and the case body -- the original construction is seamless
  • Link surfaces that are uniformly finished (all brushed or all polished) rather than the alternating pattern
  • Aftermarket bracelets where the link geometry is slightly different in width or thickness from the case width
  • Clasp that does not bear "CARTIER" engraving and the reference/serial number on the deployment section
Crown (right side, fluted)

Original: The Tank Française crown is at 3 o'clock, integrated with a protective crown guard formed by the case itself. On the two-tone reference, the crown tube and surrounding guard are yellow gold.

Replacement tells
  • Crown at 9 o'clock rather than 3 o'clock -- the Française wears the crown at 3, which is the correct position for this reference
  • Crown guard that shows any gap or wobble relative to the case integration
  • Gold-colored crown on a stated two-tone reference that shows wear or discoloration suggesting plating rather than solid gold
Dial (date window alignment)

Original: The date window has a fine beveled edge and shows numbers that are correctly sized relative to the aperture. The text "AUTOMATIC" appears on this reference below the "Cartier" signature on the dial.

Replacement tells
  • Date disc that shows numbers that are too small, too large, or misaligned within the aperture
  • Missing "AUTOMATIC" text or "AUTOMATIC" text in incorrect typeface
  • Date window border that shows a different bevel or finish than the surround

Case back markings

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2000s to present
  • Solid caseback (no exhibition) with reference number and serial number engraved
  • "CARTIER" text around the periphery
  • Metal identification (typically "ACIER" for steel or combined steel/gold specification)
  • "Swiss Made" and water resistance rating

Movement tells

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  • The Tank Française Automatic uses ETA 2671 or the Cartier-branded equivalent. Solid caseback; movement condition evaluated at service only.
  • Rotor winding should be smooth in both directions with no scratching or mechanical catching.
  • A correctly running Française should be within COSC tolerances after service given the ETA base; consistent daily gain or loss above +15 seconds suggests the movement needs attention.
Sources: Cartier official -- Tank Française; WatchUSeek -- Cartier reference identification.

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