Atelier in Via XX Settembre 15, Milan. By appointment only, in person or by video call.

Tudor

Bespoke strap for Tudor Black Bay

Casati Milano builds bespoke straps for the Tudor Black Bay, from the first model with the burgundy bezel to the GMT and today's smaller cases, in the atelier at Via XX Settembre in Milan or by video call wherever you are: the size read from the archive for your reference, the leather chosen together, four to five weeks of work, care for the first eighteen months included.

  • By appointment only
  • In the atelier in Milan or by video call
  • Four to five weeks
  • Eighteen months of care

References in the archive

45
A photograph of your watch, front and back, allows us to answer with more certainty: the reference, the lugs and the clasp are visible.Send a photograph of your Black Bay and let us discuss it
Tudor Black Bay
References in the archive25
Lug width22 mm on 16 · 23 mm on 5 · 19 mm on 1 · 21 mm on 1
Case41 mm · 42 mm · 43 mm
Years2012 – 2024
Tudor Black Bay 58
References in the archive10
Lug width20 mm on 10
Case39 mm
Years2018 – 2025
Tudor Black Bay Chronograph
References in the archive6
Lug width22 mm on 6
Case41 mm · 42 mm
Years2018 – 2025
Tudor Black Bay GMT
References in the archive4
Lug width22 mm on 4
Case41 mm
Years2020 – 2023
From the atelier archiveRead on 2026-11-13
Tudor Black Bay 7941A1A0RU

Your Tudor Black Bay with the leathers of the atelier

Matte Louisiana alligator leather, anthracite colour: one of the leathers from the Casati Milano atelier
Matte Louisiana alligator leather, orange colour: one of the leathers from the Casati Milano atelier

Matte Louisiana alligator leather

Anthracite

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Real photographs of the atelier’s leathers. No generated images.

The size

We do not ask you for it. The atelier's archive knows the Black Bay references one by one: the lug width, the case, the years. Below is what the archive says today; from the reference, everything else follows. The watch stays on your wrist.

What changes for the strap

The end of the strap follows the profile of the case between the two lugs. What size your reference takes is stated by the archive.

The leather

Alligator, box calf, suede, shell cordovan: the leather is chosen together, in the atelier or via video call. Where it fits between the lugs the strap is as thin as it needs to be; at the wrist it returns to its full thickness. The calf lining, the edges painted in several layers, the hand saddle stitching.

The time

Four, five weeks from confirmation. In the atelier on Via XX Settembre or via video call, wherever you are. Care for the first eighteen months is included.

The next step

The right strap is not chosen. It is built together.

In the atelier in Via XX Settembre or by video call, wherever you are.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

Seven models

The Black Bay was born in 2012 with reference 79220R: a 41 mm case, ETA 2824 calibre, burgundy bezel and Snowflake hands. In 2016 the in-house MT5602 calibre arrived; in 2018 the Black Bay Fifty-Eight brought the case down to 39 mm.

Black Bay 79220R

The first Black Bay, from 2012, has a 41 mm case, the ETA 2824 calibre and 22 mm lug width; it comes on a steel bracelet or on aged leather, always with a second fabric strap.

References79220R
YearsFrom 2012
CalibreETA 2824
Case41 mm
Lug width22 mm
Original metal braceletSteel Oyster
Original watch strapAged leatherFabric, included with every version

Black Bay 79230

From 2016 the 41 mm Black Bay carries the in-house MT5602 calibre and receives the riveted bracelet; the lug width remains 22 mm.

References79230
YearsFrom 2016
CalibreMT5602
Case41 mm
Lug width22 mm
Original metal braceletRiveted steel

Black Bay 58

In 2018 the Black Bay 58 reduces the case to 39 mm with the MT5402 calibre: the lug width drops to 20 millimetres.

References79030N
YearsSince 2018
CalibreMT5402
Case39 mm
Lug width20 mm
Original metal braceletRiveted steel, three-link

Black Bay GMT

The 2018 Black Bay GMT has a 41 mm case, the MT5652 calibre with a second time zone and 22 mm lug width.

References79830RB
YearsSince 2018
CalibreMT5652
Case41 mm
Lug width22 mm
Original metal braceletRiveted steel

Black Bay Pro

The 2022 Black Bay Pro unites the 39 mm case with the GMT's MT5652 calibre: 20 mm between the lugs.

YearsSince 2022
CalibreMT5652
Case39 mm
Lug width20 mm
Original metal braceletRiveted steel with T-fit clasp

Black Bay 54

The Black Bay 54 has a 37 mm case, the MT5400 calibre, and 20 mm between the lugs; the steel bracelet has three links, with a T-fit clasp.

References79000N
CalibreMT5400
Case37 mm
Lug width20 mm
Original metal braceletThree-link steel with T-fit clasp

Black Bay Master Chronometer

The Black Bay with the MT5602-U calibre keeps the 41 mm case and comes with two steel bracelets, either three or five links, both with a T-fit clasp.

CalibreMT5602-U
Case41 mm
Original metal braceletThree-link steel with T-fit claspFive-link steel with T-fit clasp

Updated on · Casati Milano