Rolex
Bespoke strap for Rolex Datejust
Casati Milano builds made-to-measure straps for the Rolex Datejust, from the 4467 of 1945 to today's Datejust 36 and 41, in the atelier at Via XX Settembre in Milan or by video call wherever you are: the measurement read from the archive of your reference, the leather chosen together, four or 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

Your Rolex Datejust with the leathers of the atelier


Matte Louisiana alligator leather
Anthracite
1 / 32
Real photographs of the atelier’s leathers. No generated images.
The measurement
We do not ask you for it. The atelier’s archive knows the Datejust references one by one: the lug width, the case, the years. Below is what the archive says today; from the reference the rest follows. The watch stays on your wrist.
What changes for the strap
The strap takes the place of the bracelet and its end links, and the tip follows the profile of the case between the two lugs. The archive tells you the lug width of your reference.
The leather
Alligator, box calf, suede, shell cordovan: the leather is chosen together, in the atelier or over a video call. Where it enters between the lugs, the strap is as thin as needed; at the wrist it returns to its own thickness. The calf lining, the edges painted in several layers, the hand stitching with a saddle stitch.
The time
Four to five weeks from confirmation. At the atelier in Via XX Settembre or over a 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
Datejust 36: four generations
The Datejust was born in 1945 with reference 4467, in yellow gold on the Jubilee bracelet presented together with the watch: it is the first automatic with a date that changes on its own in a window. The case has been 36 mm since the beginning and, from the 1601 to today's references, has a 20 mm lug width; in 2009 the Datejust II brings it to 41 mm, with a 21 mm lug width.
The 1601
The 1601 has a 36-millimetre case, a plexiglass crystal and, on early examples, the dial known as pie-pan; the date does not yet have quickset. Lug width, 20 millimetres.
160xx and 162xx: the five digits
From 1977 the 160xx carry calibre 3035 with quickset date and keep the plexiglass crystal; from 1988 the 162xx have a sapphire crystal and calibre 3135. Lug width, 20 millimetres.
116200 and 116234
The six-figure references 116200 and 116234 hold the 36-millimetre case and the calibre 3135, on an Oyster or Jubilee bracelet. Between the lugs, 20 millimetres.
126200 and 126234: the calibre 3235
Today's generation carries the calibre 3235 in the 36-millimetre case; the 126234 arrives in 2019. Between the lugs, 20 millimetres.
The other cases
Datejust II and Datejust 41
In 2009 the Datejust II brought the case to 41 millimetres; from 2016 the Datejust 41 took it up again with a slimmer profile and the calibre 3235. Lug width, 21 millimetres.
Datejust 31
On today's Datejust 31, with the calibre 2236, the lug width is 16 millimetres.
Lady-Datejust 28
Today's Lady-Datejust has a 28 millimetre case: lug width, 14 millimetres.