Nomos Alpha Family

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BRANDS: Nomos

Production: 2004 – Current
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

The Nomos Alpha family of movements is an evolution of the original Nomos 1 family, itself based closely on the classic Peseux 7001. The Alpha family was the first movement constructed in-house by Nomos in Glashütte, though the assortment was sourced from ETA. Although based on the 7001 design, the plates and bridges are entirely different and reflect the classic Glashütte three-quarter plate concept. Nomos also manufactured the wheels in-house.

Nomos counts the 2006 automatic Nomos Epsilon as their official first in-house movement. It added a Nomos-designed bi-directional automatic winding system to the Alpha base which was entirely novel.

Hand-winding members of the family locate the balance wheel just past 3:00, when viewed from the back with the winding stem at 9:00, on a dog-leg cock. This is the same as the Peseux movement. Automatic versions use a very different balance wheel and cock located at 4:00.

The Nomos 1 was based on an ETA/Peseux 7001 Ebauches

The Nomos Alpha was produced in-house except for the escapement

The DUW 4000/5000 includes the in-house Nomos Swing System

Starting in 2014, the Alpha family movements are being phased out in favor of the newer DUW 4000/5000 family, which includes the in-house Nomos Swing System assortment.

Nomos initially used Greek letters exclusively when naming these movements. Over time, they began specifying the name in Latin characters as well (i.e. “ξ (xi)”) before moving almost exclusively to Latin characters (i.e. “Nomos Alpha”) in the 2010s.

Nomos Alpha Family Movements

Complications	Hand-Winding	Automatic
No Date	Nomos α (Alpha) Nomos Alpha.2	Nomos ε (Epsilon)
Date	Nomos β (Beta)	Nomos ζ (Zeta)
World Time		Nomos ξ (Xi)
Power Reserve	Nomos γ (Gamma)
Date and Power Reserve	Nomos δ (Delta)

Calibre	Start Year	End Year	Diameter (mm)	Diameter (ligne)	Height (mm)	Complications
Nomos Alpha	2004	Current	23.3	10.5	2.6	Hacking Seconds
Nomos Alpha.2	2019	Current	23.3	10.5	2.6	Hacking Seconds
Nomos Beta	2005	2016	32.15	14.5	2.8	Date, Hacking Seconds, Quick Date Correction
Nomos Delta	2005	2016	32.15	14.5	2.8	Date, Hacking Seconds, Power Reserve Indicator, Quick Date Correction
Nomos Epsilon	2006	Current	31.0	13.75	4.3	Hacking Seconds
Nomos Gamma	2007	2016	23.30	10.5	2.8	Hacking Seconds, Power Reserve Indicator
Nomos Xi	2011	2016	31.00	13.75	5.7	24 Hour Hand, Hacking Seconds, World Time
Nomos Zeta	2006	Current	31.0	13.75	4.3	Date, Hacking Seconds, Quick Date Correction