Omega · Speedmaster Moonwatch
Strap for Speedmaster Professional Moonwatch Apollo 11 35th Anniversary
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Recommended spring bar
Straps for the Speedmaster Moonwatch 3569.31.00 (aka: 35693100)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Millenium Cognac Alligator Strap€270
Matte Blue Alligator Strap€270
Green Rubberized Alligator Strap with Ecru Tribal Stitching€185
The Speedmaster Moonwatch 3569.31.00 (aka: 35693100), seen from the bench
Frequently asked questions
What is the lug width of the Omega Speedmaster Moonwatch 3569.31.00?
The lug width is exactly 20 millimeters. This measurement must be strictly observed: straps of 19 or 21 millimeters are not compatible with the case lugs. Always measure from wall to wall between the case pins for accurate verification.
What material is recommended for the strap of the Moonwatch 3569.31.00?
It depends on your use. Black alligator with satin steel deployant clasp maintains stylistic coherence with the technical design. Vegetable-tanned calf develops natural patina over time, amplifying uniqueness. Shell cordovan offers crystalline aesthetics with conscious maintenance. NATO straps guarantee austere functionalism and indefinite durability. FKM rubber ensures absolute water resistance.
How do I change the strap on the Omega Speedmaster Moonwatch 3569.31.00?
The operation requires a pin removal tool. Position the watch firmly, locate the pin on the first lug, apply the extractor with progressive pressure until the pin comes out. Repeat the operation for the opposite lug. Gently remove the old strap, insert the new one ensuring the pins enter the lugs straight without forcing. For beginners, the Casati Milano service performs the operation with simultaneous consultation on leather and proportions.
Can I use a generic aftermarket 20mm strap on my 3569.31.00?
Technically yes, if the lug width is precisely 20 millimeters. However, construction quality varies enormously. Straps from milanostraps.it guarantee selected leather, hand-stitching, quality thread and proportions studied for the Moonwatch. A cheap generic strap can result in excessive thickness, incorrect rigidity or premature seam failure. Investment in an artisanal strap delivers superior tactile experience and multi-year durability.
What lifespan should I expect from a leather strap for the 3569.31.00?
A quality natural leather strap, with vegetable tanning or alligator, maintains functional and aesthetic integrity for 3 to 7 years based on daily use, sweat exposure and climate conditions. Shell cordovan proves less durable due to intrinsic porosity, but the patina development makes it more captivating over time. Calf elegantly ages, developing characteristic micro-creases. A ballistic nylon NATO strap lasts indefinitely. The 18-month Casati Milano warranty covers manufacturing defects.
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