Omega · Globemaster
Strap for Globemaster Stainless Steel / Silver / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Globemaster 130.30.39.21.02.001 (aka: 13030392102001)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Hammered Calfskin Strap Light Blue€98
Vintage Olive Green Calf Leather Watch Strap€80
The Globemaster 130.30.39.21.02.001 (aka: 13030392102001), seen from the bench
Frequently asked questions
What is the correct lug width for the Omega Globemaster 130.30.39.21.02.001?
The lug width of the Globemaster 130.30.39.21.02.001 is 20mm. This measurement is determined by the proportions of the 39mm case diameter and must not be replaced with different sizes, as the spring bars have been manufactured with tight tolerance for this specific width. An 18mm or 22mm strap could damage the lugs or result in instability on the wrist.
Which strap material is most suitable for the Globemaster 130.30.39.21.02.001?
Mississippi alligator is the most elegant and classic choice, thanks to its fine and regular grain that naturally complements the structural rigidity of the Globemaster. For a formal profile with evolving patina, vegetable-tanned calf offers personal character. Shell cordovan from the horse hoof guarantees natural brilliance and resistance to daily wear. For a more versatile and nautical interpretation, heavy cotton NATO or FKM rubber maintain the sporty profile of the model.
How do you correctly measure the lug width of a watch?
Use a digital caliper and position it perpendicularly between the two lugs of the Globemaster, sliding the caliper blade into the seats where the current strap lug sits. The reading you obtain will be exactly 20mm for model 130.30.39.21.02.001. Never attempt to force a strap of different size, as the risk is to damage the lugs or compromise the strap stability on the wrist.
Can I use aftermarket straps compatible with the Globemaster 130.30.39.21.02.001?
Yes, 20mm aftermarket straps are fully compatible with the Globemaster 130.30.39.21.02.001, provided they respect the exact measurement. Online you will find a selection of straps in alligator, calf, shell cordovan and rubber, with the possibility to customize colours, sizes and stitching thread. The Casati Milano atelier also offers bespoke solutions with direct leather selection and 18-month warranty.
How long does a leather strap last on a watch like the Globemaster?
The lifespan of a leather strap depends on use, tanning and leather quality. A good quality alligator or shell cordovan with vegetable tanning can last 5-8 years with moderate daily use, developing a patina that increases its appeal. Calf tends to age faster, with an estimated lifespan of 3-5 years. Rubber is more resistant to wear, especially if exposed to moisture or UV rays, with longevity of 4-6 years before the texture begins to deteriorate. Seasonal rotation between different straps significantly extends overall lifespan.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

