Corum · Bubble

Strap for Bubble 42 Blue MOP

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceL295/03047 (aka: 295.100.20/0011 PN05)
FamilyBubble
MovementCorum caliber CO 295 Hours, Minutes, Small Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Bubble L295/03047 (aka: 295.100.20/0011 PN05)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Bubble L295/03047 (aka: 295.100.20/0011 PN05), seen from the bench

The Corum Bubble L295/03047 (also referenced as 295.100.20/0011 PN05) features a 42mm stainless steel case housing the CO 295 automatic movement with hours, minutes, and small seconds at 6 o'clock. The model is characterized by its iconic 8mm thick sapphire dome creating a distinctive visual magnification effect on the bombarded dial. The 22mm lug width accommodates strap compatibility, and water resistance reaches 50 meters. This contemporary timepiece represents unconventional horological design from the early 2000s.

Frequently asked questions

What is the lug width of the Corum Bubble L295/03047?

The lug width of the Corum Bubble L295/03047 is 22mm. This dimension is measured as the internal distance between the two lugs of the case. To verify it correctly, measure from the inner point of the left lug to the inner point of the right lug. Precise measurement is essential when purchasing a compatible strap to avoid tension on the case.

Which type of strap is best suited for the Corum Bubble L295/03047?

The Corum Bubble L295/03047, given its provocative and monumental aesthetic, pairs excellently with black or dark brown alligator straps for formal contexts, vegetable-tanned calf leather for visible ageing over time, and technical rubber or NATO fabric for sports and urban environments. The choice depends on dial tone and intended daily use. A deployante clasp is recommended for optimal weight distribution on the wrist.

How do I correctly change the strap on a Corum Bubble L295/03047?

Changing the strap on the Bubble L295/03047 requires the use of a spring bar removal tool or a small hammer and replacement pins. Position the watch on a soft surface, identify the horizontal pins connecting the strap to the lugs, and remove them gently. Install the new strap by inserting the pins from the same direction. If you lack experience, contact Casati Milano atelier for professional replacement at modest cost.

Can I use an aftermarket strap on a Corum Bubble L295/03047?

Yes, you can use aftermarket straps compatible with a 22mm lug width on the Corum Bubble L295/03047. Milano Straps offers a curated selection of leather, rubber, and technical fabric straps specifically tested for Corum models with 22mm spacing. Always verify compatibility through direct measurement or contact our team for free photo consultation.

How long does a leather strap last on a Corum Bubble L295/03047?

Leather strap durability depends on tanning method and intensity of use. A vegetable-tanned calf strap worn daily on a Bubble maintains structural integrity for 3-4 years before showing visible signs of wear. Alligator, due to its superior fibre density, extends this window to 5-6 years. The patina that develops is a desirable aesthetic characteristic, not a defect. FKM rubber lasts 4-5 years under regular sun exposure.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only