Editorial
The Traditionnelle Manual Tourbillon 38mm is Vacheron's most serious mechanical statement in the Traditionnelle line, housing the hand-wound calibre 2755 with a 14-day power reserve in a case size that actually suits the complication's dress-watch purpose. White gold, guilloché dial, a tourbillon aperture at 6 o'clock, and a display back: this is a collector's watch, not a showroom prop. If you want to understand what Vacheron means by haute horlogerie without the noise of a grand complication, this is the reference to study.
The 43172/000G-9274 entered production in 2021, part of Vacheron's sustained repositioning of the Traditionnelle family as a platform for serious movements rather than just case aesthetics. The calibre 2755 is a direct descendant of movement architecture Vacheron developed over decades in Geneva, a flying tourbillon design regulated at 18,000 vph with a peripheral rotor absent here (manual wind keeps the movement cleaner and thinner). The 38mm case diameter is notable: Vacheron resisted upsizing the Traditionnelle tourbillon to the 41-42mm range that became fashionable in the 2010s, preserving the proportions appropriate to a movement that originated in pocket-watch tradition.
Earlier Traditionnelle tourbillon references in this family used shorter power reserves; the 14-day indication on 2755 is the key caliber-generation differentiator. Dial variants across the line include silver guilloché and darker lacquered options, but the 43172 in white gold with silver guilloché is the canonical expression.
Tourbillon cages are fragile under shock, so verify service history and ask whether the watch has ever been dropped or repaired outside a Vacheron-authorized center. The guilloché dial is hand-finished and difficult to restore; inspect under magnification for scratches, lifting, or amateur cleaning attempts, as refinishing will destroy the texture. The display caseback makes the movement visible, which is desirable for authenticity verification but also means any mainspring or cage wear is easier to spot if you know what to look for.
Confirm the 14-day power reserve indicator is functioning correctly across its full range, not just the first few days; a worn mainspring will not show the deficiency until the final days of the run. White gold bracelet or strap condition matters on the secondary market since the integrated lug profile is specific to this case and replacements come only through Vacheron.
