Straps for Omega Seamaster — the diver that returns to shore

The Seamaster Diver 300M is the watch for the maritime professional. 20mm lugs throughout its history, from the Bond era (Pierce Brosnan, 2531.80) to current models. Below you'll find leather straps for when you're back on shore; for actual diving, link to rubber straps.

Three identities, one measure

The Seamaster Diver 300M has 20mm lugs from the Bond generation (2531.80, 2541.80) to the current 210.30.42.20 model. The same strap fits all eras. Three possible identities: black Hornback alligator for evening wear, burgundy Horween shell cordovan for daytime, natural organic rubber for actual diving — see /collections/cinturini-gomma for our diver line.

Cinturini per Omega Seamaster Diver 300M — Omega Seamaster Diver 300M 212.30.36.20.03.001

Straps for Omega Seamaster Diver 300M

Leather
Matte black alligator leather strap artisanal 20mm, thickness 3.5mm — Milano Straps

Matte Black Alligator Strap

€195,00

Matte dark brown alligator strap 20mm artisanal Made in Italy — Milano Straps

Matte Dark Brown Alligator Strap

€195,00

Black alligator strap 20mm with hand-painted light blue edges, Louisiana leather tanned in Tuscany — Milano Straps

Black Alligator Strap with Light Blue Edges

€149,00

Black alligator leather strap with white edges 20mm handcrafted Made in Italy — Milano Straps

Black Alligator Strap with White Edges

€149,00

Black alligator strap 20mm with hand-painted light red edge, Made in Italy — Milano Straps

Black Alligator Strap with Light Red Edging

€149,00

Handcrafted brown vintage calfskin strap 20mm with natural patina for Omega Speedmaster — Milano Straps

Vintage Brown Calfskin Strap — Natural Patina

€98,00

Vintage distressed brown calfskin strap with double stitching 20mm — Milano Straps

Distressed Vintage Leather Strap Double Stitching

€80,00

Brown Horween Cordovan strap | Milano Straps

Horween Cordovan Brown Watch Strap

€145,00

Cognac Mohawk Leather Strap

Cognac Mohawk Leather Strap

€95,00

Deep Navy Blue - Sophisticated Colour Richness

Saffiano Navy Blue Strap

€90,00

Black Shell Cordovan strap seamless 20mm and 22mm handmade in Italy — Milano Straps

Black Cordovan Strap with No Stitching

€145,00

Yellow hammered calfskin leather strap with ecru stitching — handmade, Milano Straps

Hammered Yellow Strap with Ecru Stitching

€98,00

Grey ostrich leather strap Made in Italy, available from 18mm to 24mm — Milano Straps

Gray Ostrich Strap

€165,00

Black calfskin leather strap with yellow stitching, burnished edges, racing style — Milano Straps

Black and Yellow Driver Leather Strap

€130,00

Cognac Epsom leather strap with ecru stitching — available in 20mm, 22mm and 24mm — Milano Straps

Cognac Epsom Leather Strap

€120,00

Hand-worked dark brown vintage leather strap, available from 18mm to 24mm — Milano Straps

Dark Brown Vintage Leather Strap

€80,00

Two-piece green military watch strap in eco-friendly fabric — Milano Straps

Military Two-Piece Eco-Friendly Military Green Strap

€52,00

Authentic black alligator strap with natural rubber lining 120/75mm — Milano Straps

Alligator and Black Rubber Strap

€138,00

Black saffiano rubber strap 6mm with natural rubber lining and quick-release — Milano Straps

Black Saffiano Rubber Strap

€105,00

Olive green Italian calfskin strap with ecru stitching — Milano Straps

Olive Calfskin Strap

€80,00

Eco-Friendly Military Grey Two-Piece Strap - Military Watch Strap- Milano Straps

Military Two-Piece Grey Strap — Eco-Friendly Materials

€52,00

Handcrafted dark green Crazy Horse leather strap, Made in Italy — Milano Straps

Dark Green Crazy Horse Strap

€80,00

Military green eco-friendly two-piece watch strap with quick-release — Milano Straps

Eco-Friendly Two-Piece Military Green Watch Strap

€52,00

Rubber strap with brown alligator back, 6mm thickness, quick-release — Milano Straps

Rubber Strap with Brown Alligator Back

€138,00

Rally strap in perforated natural calfskin — Milanese craftsmanship Milano Straps

Natural Calfskin Rally Strap

€110,00

Vintage cognac strap with patina and edge stitching | Milano Straps

Vintage Cognac Strap with Patina Perimeter Stitching

€90,00

Vintage cognac strap with patina and stitching | Milano Straps

Vintage cognac strap with patina stitching

€85,00

Tan Hammered Calfskin Strap | Milano Straps

Tan Hammered Calfskin Strap

€98,00

Horween Cordovan Black Strap | Milano Straps

Black and Red Shell Cordovan Strap

€145,00

Horween Cordovan Cognac Strap | Milano Straps

Black and Red Shell Cordovan Strap

€145,00

Ice Hammered Calfskin Strap | Milano Straps

Hammered Calfskin Strap Light Blue

€98,00

Cognac Alligator Millenium Strap

Millenium Cognac Alligator Strap

€195,00

Vintage Black Calfskin Strap

Vintage Black Calfskin Leather Strap

€80,00

Light Blue Hammered Calfskin Strap

Hammered Calfskin Strap Light Blue

€98,00

Taupe Hammered Calfskin Strap with Ecru Stitching

Hammered Calfskin Taupe Strap Ecru Stitching

€98,00

Taupe saffiano leather watch strap with ecru stitching, cross-grain texture, understated and sophisticated, heritage 1913, Made in Milan Italy

Saffiano Taupe Strap

€90,00

Milano Straps cognac Saffiano strap

Saffiano Cognac Strap

€90,00

Watch strap in black Saffiano leather, tone-on-tone stitching, crosshatch texture, discreet understated elegance, Made in Milan Italy heritage 1913

Saffiano Black Strap Tone Stitching

€90,00

Handcrafted embossed light blue Epsom leather strap 20mm for Omega Seamaster — Milano Straps

Embossed Azure Epsom Strap

€120,00

Grey embossed Epsom leather strap handcrafted Made in Italy — Milano Straps

Gray Epsom Leather Strap

€120,00

Blue Saffiano leather strap with ecru stitching 20mm Made in Italy — Milano Straps

Saffiano Leather Strap Light Blue Ecru Stitching

€90,00

Matte light blue alligator strap, handmade, 18-22mm, for Rolex Datejust and Omega Seamaster — Milano Straps

Matte Blue Alligator Strap

€195,00

Swift leather strap in mouse grey, handstitched — sizes 18-22mm, handcrafted Milano Straps

Swift Topo Leather Strap

€120,00

Red hammered calfskin strap, ecru stitching — available 18mm-24mm, Made in Italy — Milano Straps

Red Hammered Calfskin Strap Ecru Stitching

€98,00

Cognac rally strap in Italian calfskin with racing perforations — Milano Straps

Italian Calfskin Rally Strap in Cognac

€110,00

Grey vintage leather strap, handmade in Milan, brushed aged finish, 20mm 22mm 24mm — Milano Straps

Vintage Grey Leather Strap – Handmade in Milan

€80,00

Red suede vintage leather watch strap - suede strap - Milano Straps

Red Suede Strap

€90,00

Brown Italian leather strap, 20mm, handmade, Made in Italy — Milano Straps

Brown Italian Leather Strap

€80,00

Cognac vintage leather strap, double ecru stitching, handcrafted, Made in Italy — Milano Straps

Cognac Vintage Strap Double Ecru Stitching

€80,00

Red Saffiano leather strap, ecru stitching, 20mm, handcrafted, Made in Milan — Milano Straps

Saffiano Red Strap Ecru Stitching

€90,00

Black Saffiano leather strap, ecru stitching, 20mm, handcrafted, Made in Milan — Milano Straps

Black Saffiano Strap Ecru Stitching

€90,00

Hand-brushed vintage bone distressed calfskin strap, available in 20mm 22mm 24mm — Milano Straps

Vintage Bone Leather Strap

€80,00

Military strap in Italian burgundy calfskin 20mm, G10 one-piece design — Milano Straps

Italian Leather NATO Strap — Bordeaux

€80,00

One-piece military strap in brown calfskin 20-22mm, length 255mm — Milano Straps

Brown Italian Leather NATO Strap

€80,00

Vintage orange suede strap — available from 16mm to 24mm, Made in Italy — Milano Straps

Vintage Orange Suede Strap

€90,00

Vintage olive green distressed calfskin strap — available in 18mm 20mm 22mm 24mm — Milano Straps

Vintage Olive Green Calf Leather Watch Strap

€80,00

Hand-brushed vintage dark brown leather strap, ecru stitching — Milano Straps

Dark Brown Vintage Leather Strap

€80,00

Vintage yellow suede strap 20mm in Italian suede leather — Milano Straps

Vintage Yellow Suede Strap

€90,00

Dark brown Saffiano leather watch strap ecru stitching 20mm handcrafted Made in Milan — Milano Straps

Dark Brown Saffiano Strap with Ecru Stitching

€90,00

Blue suede watch strap with handmade red tribal stitching, available in 20mm 22mm 24mm — Milano Straps

Blue Suede Strap with Red Tribal Stitching

€130,00

Vintage green calfskin leather watch strap with ecru stitching, available in 20mm 22mm 24mm — Milano Straps

Vintage Green Calf Leather Strap

€80,00

Vintage grey calfskin watch strap 20mm handstitched — Milano Straps

Vintage Gray Calfskin Strap

€80,00

Military green suede watch strap red stitching 20mm vintage handcrafted Made in Italy — Milano Straps

Military Green Vintage Suede Strap with Red Tribal Stitching

€130,00

Brown suede watch strap with handmade blue tribal stitching, available in 20mm 22mm 24mm — Milano Straps

Brown Suede Strap Blue Tribal Stitching

€130,00

Camel suede watch strap with white tribal stitching, available in 20mm 22mm 24mm — Milano Straps

Camel Suede Strap with White Tribal Stitching

€130,00

Green Shell Cordovan strap 20mm — Milano Straps

Green Cordovan Strap

€145,00

Brown padded calfskin leather watch strap Made in Italy — available in 20mm, 22mm, 24mm — Milano Straps

Brown Box Calfskin Strap — Padded

€80,00

Green rubberised crocodile watch strap 20mm ecru tribal stitching handcrafted Made in Italy — Milano Straps

Green Rubberized Alligator Strap with Ecru Tribal Stitching

€149,00

Red embossed Epsom leather watch strap 20mm for Omega Speedmaster Racing and Tudor Black Bay — Milano Straps

Embossed Red Epsom Strap

€120,00

Emerald green Epsom leather strap 20mm handcrafted Made in Italy — Milano Straps

Emerald Green Epsom Leather Strap

€120,00

Grey embossed Epsom leather watch strap 20mm — scratch-resistant geometric texture, Made in Milan — Milano Straps

Epsom Grey Strap

€120,00

Black shell cordovan watch strap ecru stitching 20mm handmade — Milano Straps

Black Cordovan Strap with Ecru Stitching

€145,00

Black-blue shell cordovan watch strap 20mm handcrafted Made in Italy — Milano Straps

Black-Blue Cordovan Strap in Shell Cordovan

€145,00

Black and red Shell Cordovan Horween strap 20mm handcrafted Made in Italy — Milano Straps

Black and Red Shell Cordovan Strap

€145,00

Dark brown Italian leather strap with white stitching — available from 18mm to 24mm, Milano Straps

Dark Brown Leather Strap with White Stitching

€80,00

Rust suede strap with blue tribal stitching, available in 20mm 22mm 24mm — handcrafted Made in Italy Milano Straps

Rust Suede Strap with Blue Tribal Stitching

€130,00

Dark brown suede strap with vintage tribal stitching 20mm 22mm 24mm handcrafted Made in Italy — Milano Straps

Dark Brown Suede Strap with Vintage Tribal Stitching

€130,00

Vintage grey suede strap with tribal stitching 22mm handmade — Milano Straps

Vintage Grey Suede Strap with Tribal Stitching

€130,00

Black rubberised crocodile strap 20mm with red tribal stitching handmade in Italy — Milano Straps

Black Rubberized Alligator Strap with Red Tribal Stitching

€185,00

Black rubberised crocodile strap with blue stitching 20mm Made in Italy — Milano Straps

Black Rubberized Alligator Strap with Blue Tribal Stitching

€145,00

Red suede strap 20mm with handcrafted stitching Made in Italy — Milano Straps

Red Suede Strap with Stitching — Milano Straps

€90,00

Red rubberised crocodile strap 20mm with blue tribal stitching — Milano Straps

Red Gummy Alligator Strap with Blue Tribal Stitching - 20mm

€185,00

Vintage brown calfskin strap with ecru stitching, available from 18mm to 24mm — Milano Straps

Brown Vintage Calfskin Strap

€98,00

Green Saffiano strap with folded edge and white stitching 20mm — Milano Straps

Saffiano Green Strap Rolled Edge White Stitching

€90,00

Frequently asked questions

What lug width does my Omega Seamaster have?

First look for your model in the Milano Straps watch archive, or in the "Find your watch's size" box on every product page. If you can't find it or want confirmation, send a photo of the watch to the atelier on WhatsApp using the "Verify on WhatsApp" button, or photograph it on app.milanostraps.it which recognises the model. Only as a last resort measure with a calliper between the two lugs: never a ruler alone, the case back or manual do not give this information.

Which Omega Seamaster models are covered by Milano Straps straps?

You'll find straps for Aqua Terra, Seamaster Diver 300M, Seamaster Planet Ocean, Seamaster 120M, Seamaster 300, Seamaster, Railmaster and Museum Collection. Lug widths vary from family to family: a good number fit 20 mm, a minority fit 22 mm, and a few models have 21, 19, 18, 16, 14 or 24 mm. To find out which lug width your watch has, use the watch archive or send a photo on WhatsApp.

Which leathers do you have ready for my Seamaster?

The catalogue includes straps in nylon (80 pieces), calfskin (60), alligator (38), saffiano (26), suede (19), cordovan (11), lizard (8) and ostrich (2). These are ready-made pieces, with the price shown on the product page: choose them and take them home without waiting for production.

Can I have a made-to-measure strap for my Omega Seamaster?

Made-to-measure isn't done by Milano Straps but by Casati Milano, the same atelier on Via XX Settembre in Milan, by appointment only through casatimilano.com. There, the strap is discussed starting from your watch, with no price lists published online. If instead you're looking for a ready-made piece to choose straight away, stay on this page: the available leathers have their price shown on the product sheet.

Will a strap for the Seamaster Diver 300M also fit a Planet Ocean?

It depends on the lug width of your specific piece, not on the family itself: two Seamaster watches from different lines can have the same size or different sizes. Always check the figure using the Milano Straps watch archive or by sending a photo via WhatsApp to the atelier, so you avoid mistakes before choosing the leather.

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 →

What we offer

  • We guide you through every step — with exclusive images directly from our atelier
  • Over 50 artisanal steps for each strap — from leather selection to final stitching
  • The time it takes to do extraordinary things — four, five weeks. Not a day less.
  • An object designed to last a lifetime — cared for by us for eighteen months
  • The right leather for your watch — chosen together, in the atelier, only for you

By appointment only · Milan