The Omega Speedmaster Speedy Tuesday Limited Edition is kind of made by Speedmaster fans for Speedmaster fans
Omega caliber 1861 (base Lemania caliber 1873) | Hand-wound | Diameter: 27 mm (12 lignes) | Thickness: 6.87 mm | Frequency: 21,600 vph (3 Hz) | Jewels: 18 | Hours, minutes, small seconds, chronograph | Power reserve: 48 hours
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This movement has a rhodium plated finish. and is basically found in Omega Speedmaster Professional Moonwatch models, from 1996 and onwards. A variant of this movement is the Omega caliber 1863, which is almost the same however it has a more luxurious finish. So, the 1863 is more used in Speedmasters with a transparent case back. The Omega 1861 has an accuracy of -1 to +11 seconds per day.
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Watches with the Omega caliber 1861
This new Omega Speedmaster CK2998 Limited Edition is in fact an updated version with the classic model from 1959 as inspiration