A. Lange & Söhne 1815 Chronograph vs A. Lange & Söhne 1815 Up/Down

Side-by-side at a glance. Click a watch above to open the full reference page.

	A. Lange & Söhne 414.028	A. Lange & Söhne 234.026
Model	1815 Chronograph	1815 Up/Down
Caliber	A. Lange & Sohne Cal. L951.5 -- manual-wind, in-house, 18,000 semi-oscillations/hour (2.5Hz), 60h PR, 306 parts; flyback chronograph with precisely jumping minute counter and pulsometer scale. Jewel count is not published by Lange.	A. Lange & Sohne Cal. L051.2 -- manual-wind with up/down power reserve, 21,600bph, 72h PR, 29j; Lange flagship feature set
Case size	39.5mm	39mm
Lug-to-lug	n/a	45.5mm
Years produced	2017–present	2013–present
Brand tier	top-luxury	top-luxury
Era	modern	modern
Movement tier	Unclassified movement	Unclassified movement
Market median (excellent / full-set)	n/a	n/a
Typical range	n/a	n/a
Confidence	low	low
Categories	dress	dress
Editorial	n/a	yes
Typical price (2026)	n/a	$28,000 – $42,000