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The Patek Philippe Calibre 240 Barrel Complete is a genuine OEM spare part for the iconic ultra-thin automatic movement family (Cal. 240, 240 PS, 240 Q, etc.). This pre-assembled unit, containing the barrel drum, mainspring and arbor, stores the energy from the 22K gold micro-rotor and releases it with consistent torque to the gear train. As a genuine factory component, it is the ideal replacement for a worn or damaged original barrel when restoring the movement’s full 48-hour power reserve and high precision.
Original Patek Philippe quality – 100% authentic OEM component, manufactured to the brand’s exacting standards.
Optimized torque output – Provides the correct mainspring tension to maintain the movement’s stable amplitude and 48-hour power reserve.
Ultra-thin design support – Specifically engineered for the 2.53mm thin self-winding caliber 240.
Pre-assembled unit – Complete barrel assembly for a drop-in replacement, simplifying service and eliminating the need for separate mainspring handling.
Proven reliability – Designed for the 240, a movement celebrated as “engineering at its most stunning” and serving as the base for many of the brand’s most prestigious complications.
| Parameter | Value |
|---|---|
| Compatible Calibers | Patek Philippe Calibre 240 family (incl. 240 PS, 240 Q, 240 HU C, etc.) |
| Power Reserve | Min. 38 hours – Max. 48 hours |
| Beat Rate | 21,600 semi-oscillations/hour (3 Hz) |
| Case Material | Steel, Brass, or Gold |
| Case Diameter | 27.5 mm – 31 mm (depending on variant) |
| Case Thickness | 2.53 mm – 4.58 mm (depending on variant) |
| Number of Parts | 252 – 353 (depending on variant) |
| Number of Jewels | 27 – 29 (depending on variant) |
Direct replacement for a worn or damaged barrel complete during a full service of any Patek Philippe caliber 240 family movement.
Suitable for iconic models using the 240 movement, such as the Nautilus (e.g. Ref. 5711, 5810/1G), Calatrava, Aquanaut, Golden Ellipse, Twenty~4, and many Grand Complications.
Essential for professional watchmakers and authorized service centers to restore the movement’s power reserve and chronometric performance.
Q1: Is this a genuine Patek Philippe part?
Yes, it is a 100% authentic, brand new Patek Philippe OEM component.
Q2: Which calibers is this barrel complete compatible with?
It is designed for the entire Calibre 240 family, including the base 240, 240 PS (small seconds), 240 Q (perpetual calendar), 240 HU C (world time), and others.
Q3: Why would the barrel need replacement?
Over time, the mainspring can fatigue and the barrel’s internal lubrication can degrade, leading to reduced power reserve and low amplitude. Replacing the complete barrel assembly restores original performance and ensures reliable winding.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
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