Doxa · SUB 300
Strap for Doxa SUB 300 840.10.351.21
The SUB 300T Professional takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
- 4.8 out of 5 · 269 reviews
- Ships in 1–3 working days
- Worldwide shipping
- 30-day returns
- 12-month warranty on manufacturing defects
- Hand-stitched in Milan
Lug width
Your watch with our straps
Calf, Orange
Grand Cavalier Leather Strap Orange
€120
★ 4.9 · 12
1 / 109
Real photos of the strap and the case. No generated images.
What length do I need?
Measure your wrist with a tailor's tape or a piece of string, comfortably snug.
| Wrist circumference | Length (long side / short side) |
|---|---|
| 15.0–16.4 cm | 120 / 70 mm |
| 16.5–17.8 cm | 125 / 75 mm |
| 17.9–19.0 cm | 130 / 80 mm |
| 19.1–20.3 cm | 135 / 85 mm |
| 20.4–21.6 cm | 140 / 85 mm |
| 21.7–22.9 cm | 145 / 90 mm |
The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.
What I'm asked about the Doxa SUB 300 840.10.351.21
What strap size does the Doxa SUB 300 840.10.351.21 take?
The Doxa SUB 300 840.10.351.21 needs 20 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Doxa SUB 300 840.10.351.21 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 Doxa SUB 300 840.10.351.21?
Yes, in 20 mm leather. On a 43 mm case a calf strap works every day; if you want something more, alligator.
Which strap do you recommend for the Doxa SUB 300 840.10.351.21?
A 20 mm calf strap, for every day. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Doxa in 20 mm
- Doxa DOXA Army Army, Bronze BezelDOXA Army
- Doxa DOXA Army Army, Stainless Steel BezelDOXA Army
- Doxa SUB 200 Sub 200 C-Graph AquamarineSUB 200
- Doxa SUB 200 Sub 200 C-Graph II AquamarineSUB 200
- Doxa Sub 200 T.Graph IISub 200 T.Graph II
- Doxa SUB 300 Ti5 Clive CusslerSUB 300 Ti5 Clive Cussler
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