The 1815 Flyback Chronograph is Lange's flagship sport complication with a column-wheel flyback movement built entirely in-house; secondary prices are firm because production is tightly controlled and the movement quality is beyond criticism.
▶What do condition grades mean?
New Old Stock
Unworn example retaining original packaging, tags, and warranty documentation.(+30–50% above market)
Unpolished
Worn but the case has never been polished; original brushed and polished surfaces are intact.(+15–25% above market)
Polished
Case has been professionally or amateur polished at some point; edge definition is softened.(-15 to -5% vs. market)
Recently Serviced
Movement has been recently serviced with documented service records; case condition varies.(at market)
Project
Needs service, has dial or hand issues, non-original parts, or other remediation before daily wear.(-50 to -25% vs. market)
Editorial estimate. Actual prices vary by condition, date, and box/papers status. Live pricing data is in development.
Movement tier: unclassified · caliber A. Lange & Sohne Cal. L101.2 -- manual-wind flyback chronograph, 18,000bph, 60h PR, 363 parts; column wheel, vertical clutch, flyback pusher at 10; lever-set outsize date
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
41.9 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.
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