Unimatic · Modello Quattro
Strap for Unimatic Modello Quattro U4-BTS
The Modello Quattro U4-BTS x BAIT Inquisitive Explorer takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width

Straps for the Modello Quattro U4-BTS
Selected for the 22 mm lug width · workshop selection
What I'm asked about the Unimatic Modello Quattro U4-BTS
What strap size does the Unimatic Modello Quattro U4-BTS take?
The Unimatic Modello Quattro U4-BTS needs 22 mm between the lugs, usually 18 or 20 mm at the buckle. It's the size I've been fitting on it for years.
Can the strap on the Unimatic Modello Quattro U4-BTS be changed?
Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.
Can I put a leather strap on the Unimatic Modello Quattro U4-BTS?
Yes, in 22 mm leather. On a 40 mm case a calf strap works every day; if you want something more, alligator.
Which strap do you recommend for the Unimatic Modello Quattro U4-BTS?
A 22 mm calf strap, for every day. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Modello Quattro
- Unimatic Modello Quattro U422 mm
- Modello Quattro U4-A22 mm
- Modello Quattro U4-BTY x BAIT Inquisitive Explorer22 mm
- Modello Quattro U4-RE Royal Enfield22 mm
- Modello Quattro U4-TA Trupo Alpine22 mm
- Unimatic Modello Quattro U4S22 mm
- Modello Quattro U4S-8BB All Black22 mm
- Modello Quattro U4S-BRZ-ML Massena Lab22 mm
More Unimatic in 22 mm
- Unimatic Modello Uno U1Diving Watches
- Modello Uno U1-AModello Uno
- Modello Uno U1-BModello Uno
- Modello Uno U1-BF BettinardiModello Uno
- Modello Uno U1-BFN BettinardiModello Uno
- Modello Uno U1-BNModello Uno
For changing the strap
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
The atelier's website: casatimilano.com





