Felsa 4004 Watch Spare Parts

Felsa 4004 Watch Movements
Felsa 4004 Watch Movements
Felsa 4004 Watch Spare Parts
Felsa 4004 Watch Spare Parts
Felsa 4004 Watch Spare Parts
Felsa 4004 Watch Spare Parts

Felsa 4004 Watch Spare Parts: Comprehensive Guide for Collectors and Watchmakers

The Felsa 4004 is a Swiss automatic watch movement featuring a bumper winding system, widely used in the mid-20th century. Measuring 11.5 lignes (26.3 mm) in diameter and 5.6 mm in thickness, this calibre is known for its reliable performance, featuring 17 to 30 jewels depending on specific variants. It operates at 18,000 vibrations per hour (vph) and offers a power reserve of approximately 44 hours. The movement includes a sweep seconds and date functionality, making it an important calibre within the Felsa family.
Key Technical Specifications

Calibre: Felsa 4004

Movement Type: Automatic (bumper winding)

Jewels: 17 to 30 synthetic rubies

Frequency: 18,000 vph

Diameter: 26.3 mm (11.5 lignes)

Thickness: 5.6 mm

Power Reserve: Approx. 44 hours

Functions: Hours, minutes, sweep seconds, date

Common Spare Parts

Balance Assembly: Complete balance including hairspring and staff for precise time regulation

Mainspring: New Old Stock (NOS) mainsprings recommended for consistent power delivery

Rotor & Axle: Bumper rotor and pivot components essential for automatic winding

Stem & Crown: Precise fit essential for winding, time setting, and date adjustment

Gear Train Components: Center, third, fourth, and escape wheels ensuring smooth power transmission

Date Mechanism Components: Date wheel, jumper spring, and quickset parts for calendar function

Hands & Dial Components: Compatible hour, minute, sweep second hands, and date display parts

Jewels: Synthetic rubies reduce friction and wear on critical pivots

Clicks & Springs: Ratchet wheels, click springs, and bumper springs provide winding functionality and security

Bridges & Plates: Provide structural integrity and precise component alignment

Maintenance and Sourcing Tips

Verify the “4004” calibre designation before ordering parts for accuracy

Use NOS or verified donor components to maintain originality and watch value

Source from reputable vintage watch part dealers and trusted suppliers

Employ Swiss-certified lubricants and professional servicing for durability

Importance of Genuine Spare Parts

Ensures precision, longevity, and authentic preservation

Maintains collector value and mechanical reliability

Supports expert repairs and dependable daily use

Utilizing genuine spare parts is crucial for preserving the Felsa 4004’s legacy as a precise, robust Swiss automatic calibre appreciated by watchmakers and collectors.

 

For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]

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Stem, Crown, Hands & Spares might be available for this movement.

Email us for rate and availability: [email protected]

Mobile/WhatsApp: +91- 9841 360 340