Zenith
Chronomaster Sport 03.3100.3600/69.C823— lug 20mm
Zenith Chronomaster Sport 03.3100.3600/69.C823: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Zenith 03.3100.3600/69.C823The essential strap measurement.
Browse 20mm straps →03.3100.3600/69.C823
Zenith caliber El Primero 3600 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Chronomaster Sport
FAQ
What lug width does the Zenith Chronomaster Sport 03.3100.3600/69.C823 have?
The Zenith Chronomaster Sport 03.3100.3600/69.C823 is equipped with a 20mm lug width. This measurement was chosen by Zenith to maintain balanced visual proportions on a 41mm case, preventing the strap from appearing disproportionate. Always verify the measurement by removing the bracelet and measuring the distance between the internal shoulders of the case.
What is the best strap for the Zenith Chronomaster Sport?
The best strap depends on your usage style. For maximum aesthetic impact we recommend brushed alligator in cognac or bordeaux tones: the grain texture amplifies natural movement and pairs perfectly with the bezel ceramic. Black regenerated calf offers a contemporary and minimalist alternative. For a sports-functional setting, reinforced cordura NATO or FKM rubber guarantee practicality and develop accelerated patina.
How do you change the strap on a Zenith Chronomaster Sport?
Strap replacement requires two special tools called spring bar tools. Locate the two lateral holes at the lug ends (often hidden by small caps), insert the spring bar tool into one of the holes to depress the internal pin, and gently extract the lug. Repeat on the opposite side. Proceed in reverse to install the new strap, ensuring that the lugs are perfectly aligned and do not create play with the case.
Can I use an aftermarket strap on my Zenith Chronomaster Sport?
Yes, it is possible, provided the strap is specifically designed for 20mm lugs. Pay attention to manufacturing tolerances: some straps have lugs that are ±0.5mm out of specification, creating friction with the brushed case. Verify that the lug is rigid, the side stitching does not interfere with the case shoulders, and that the terminals are smooth. Milano Straps offers customizable 20mm straps with guarantees.
How long does a leather strap last on a chronograph like the Chronomaster Sport?
The lifespan of a leather strap depends on the material and wear. High-quality alligator resists 4-6 years with daily use, developing fascinating patina. Softer calf has an average life of 2-4 years. Natural salts from the wrist, sweat and sun exposure accelerate the aging process. To extend life, dry the strap after moisture exposure and avoid storage in sealed plastic (prefer open boxes in ventilated environments). Casati Milano's 18-month warranty covers manufacturing defects and premature wear not attributable to negligence.
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 →By appointment only · Milan
The atelier's website: casatimilano.com