Spring Bars for Rolex Bubbleback vintage models - Set of 2:

2764, 2940, 3009, 3065, 3130, 3131, 3133, 3134, 3359, 3372,3696,4392,5006,5010, 5011, 5015, 5052, 6011, 6015, 6050, 6056

If your reference appears in the selection list shown in the photos, these spring bars are correctly matched to your model.

Factory Specification Spring Bar for Rolex Bubbleback 29 mm to 31 mm

Most Bubbleback models use the uncommon 16.7 mm lug specification, making correct spring bars extremely difficult to source. These are not generic 16 mm or 17 mm alternatives. They are purpose built to fit authentic Bubbleback cases with exact tolerance, proper shoulder profile, and correct spring tension.

Designed for collectors, watchmakers, and professionals who demand period correct fit and long term security.

Compatible references include:

2764, 2940, 3009, 3065, 3130, 3131, 3133, 3134, 3359, 3372,3696,4392,5006,5010, 5011, 5015, 5052, 6011, 6015, 6050, 6056

If your reference appears in the selection list shown in the photos, these spring bars are correctly matched to your model.

Engineered specifically for vintage Rolex Bubbleback models produced between 1930 and the 1960s, these precision spring bars are manufactured to match original factory dimensions and performance.

Available Finishes

• Stainless Steel
• Yellow Gold Color

Built for Vintage Rolex Bubbleback Models 29 mm to 31 mm

Factory Correct Fit for Rolex Bubbleback

Designed exclusively for early Rolex Bubbleback cases with factory accurate dimensions and tolerances.

Correct 16.7 mm specification

Proper shoulder geometry for vintage tools

Precise lug engagement

Secure locking inside original lug holes

No modification required

No compromise on fit

No measuring

No guessing

Exact vintage fit

Swiss Standard Construction

Manufactured from high grade Swiss standard 316 stainless steel for maximum durability and corrosion resistance.

Precision machined

Engineered for long term elasticity

Built for professional installation

Designed for daily wear

Factory Level Tension and Performance

Each spring bar is tested to ensure consistent compression and secure locking inside vintage lugs.

No weak springs

No loose tolerances

No deformation over time

Maintains correct tension even after repeated bracelet or strap changes.

Precision Design for Vintage Installation

Optimized for early Oyster bracelets and leather straps used on Bubbleback models.

Correct shoulder placement

Secure seating inside vintage lug holes

Authentic installation feel

Platinum Grade Yellow Gold Finish

Our yellow gold color spring bars are finished using professional grade PVD coating engineered for long term durability and color stability.

Strong molecular bond to steel

Exceptional resistance to wear and fading

Designed for frequent strap changes

Maintains original tone and brilliance

Key Specifications

Material Swiss standard 316 stainless steel

Correct size 16.7 mm for Bubbleback (Lug Size)

Compatibility Rolex Bubbleback 29 mm to 31 mm

Era 1930 to 1960s production

Finish options Stainless steel or yellow gold color

Use Professional bracelet and strap installation

Warranty Lifetime

Built for collectors.

Trusted by watchmakers.

Manufactured to factory standards.

Made to Swiss standards for Milano Straps inc USA.

This product is not manufactured by Rolex SA and is not an official Rolex component. Rolex is a registered trademark of Rolex SA.