Actualités
KronoKeeper Squama Watch Straps: Salmon Leather, A French Material of Exception
New collection · Written by Pierre-Yves · MisterChrono Singapore KronoKeeper Squama Watch Straps: Salmon Leather, A French Material of Exception A new KronoKeeper collection crafted from authentic salmon leather, vegetable-tanned in France. Twelve colours across two exclusive finishes: Satin and Gradient. At MisterChrono Singapore, we are proud to introduce a new collection that is particularly close to our hearts: the KronoKeeper Squama collection. Crafted from authentic salmon leather, these watch straps embody artisanal excellence, eco-responsibility and contemporary elegance. This article walks you through the material, the French craftsmanship behind it, the two collection finishes, and all twelve colours now available in our boutique and online. Salmon leather: an exceptional marine material Salmon leather remains an underground material in the watch world, yet it possesses every quality of an exceptional leather: a unique natural scale grain, surprising suppleness, and remarkable resistance to wear. Its distinguishing feature is its origin: every hide is sourced from food industry by-products in France. No animal is farmed for its skin — this is a material fully upcycled from existing supply chains, in a genuinely circular and responsible approach. The result: a leather with fine, regular scales reminiscent of traditional exotic skins (python, alligator) while offering an ethical, local and sustainable alternative. French artisanal craftsmanship Our Squama leather comes from a partner French tannery, based in the Lyon region, specialised in marine leathers. The vegetable tanning process, carried out in France, follows the traditions of fine leather goods: long duration, artisanal know-how, control of every step. This process gives salmon leather its unique properties: Exceptional suppleness — the strap conforms to the wrist quickly Water resistance superior to most terrestrial leathers — especially valuable in Singapore's humid tropical climate Natural scale grain — each piece is unique, no two hides are identical Longevity — salmon leather develops a subtle patina over the years In collaboration with this French tannery, KronoKeeper developed the Squama collection: twelve colours across two finishes, designed specifically for watch straps. Satin finish: eight pure and mineral colours The Satin finish is the matte signature of the collection. The leather is dyed through the core, then lightly satined to reveal the natural structure of the scales without excessive shine. The result is understated, elegant, perfectly suited to both dress and sport-chic watches. Origine Natural undyed, matte finish Carbone Deep contemporary black Spiruline Elegant marine algae green Lie de vin Refined deep bordeaux Bleu Baltique Deep marine blue Verglacé Light mineral grey Moka Warm chocolate brown Nuage Subtle pearl grey Each Satin strap is lined with calf leather and hand-stitched with matching thread, in the pure tradition of luxury straps. Gradient finish: four colours with metallic highlights The Gradient finish represents Squama's contemporary signature. On each scale, two shades blend through an exclusive dyeing process, creating a subtle gradient that catches light differently depending on the angle. The effect is striking — a strap that changes appearance with the movement of the wrist. Odyssée Bright metallic coppery red Encre d'Or Lavish black and gold Bleu Minuit Midnight blue with copper highlights Rouge Impérial Intense deep red These Gradient straps are particularly stunning on watches with understated dials, adding a touch of contemporary boldness. Technical specifications Specification Detail Material Authentic salmon leather, vegetable-tanned in France Lining Smooth calf leather Stitching Hand-stitched, matching thread Available sizes 18-16mm, 19-18mm, 20-18mm, 21-16mm, 22-20mm Available lengths 105/65 mm (standard) or 115/75 mm (long) Leather origin Vegetable-tanned in France · Designed by KronoKeeper Caring for your salmon leather strap Squama leather is resilient and easy to live with, but a few simple practices extend its lifespan — particularly important in Singapore's humid tropical climate: Avoid prolonged contact with seawater or chlorinated pools Condition the leather once or twice a year with a fine leather cream Store away from direct sunlight during long periods of non-wear For light cleaning, use a slightly damp microfibre cloth Which watch pairs well with a Squama strap? The Squama collection lends itself remarkably well to dress watches in steel or gold, but also to sport-chic timepieces. Some pairings we particularly recommend: Rolex Datejust — a Satin Origine or Carbone elevates the jewellery character of the watch Omega Aqua Terra — a Satin Bleu Baltique resonates perfectly with blue dials Tudor Black Bay — a Gradient Bleu Minuit adds refined contrast Patek Philippe Calatrava — a Satin Lie de vin dresses up the classic with daring JLC Reverso — a Gradient Encre d'Or for a spectacular jewel-like effect The Squama collection at MisterChrono Singapore The KronoKeeper Squama collection is available at our Singapore boutique (Mandarin Gallery #03-04, 333A Orchard Road) and on our online store. Our expert advisors can present the colours in natural light, help you choose the shade that will elevate your watch, and fit the strap on site. Salmon leather is especially well suited to Singapore's climate — its natural water resistance and supple grain handle humidity better than many traditional leathers. Explore the Squama collection Full strap collection Written by Pierre-Yves, watch strap expert at MisterChrono. Specialist in fine leather, alligator, cordovan, Rolex, Omega and exceptional materials.
Learn moreRubberB Straps for Rolex: The Complete Guide | MisterChrono Singapore
Expert guide · Written by David · MisterChrono Singapore RubberB Straps for Rolex: The Complete Guide to Swiss Vulcanized Rubber Material, Blocked Integration technology, VulChromatic, series overview and full Rolex compatibility — everything you need to know before choosing your RubberB strap. When Rolex collectors decide to replace their Oyster bracelet, the choice of rubber strap matters enormously. Not all rubber straps are created equal — and RubberB, the Swiss manufacturer that pioneered custom rubber straps engineered exclusively for Rolex, has set the benchmark that every competitor is measured against. At MisterChrono Singapore, we carry the full RubberB range for Rolex. This guide breaks down everything: the material science behind RubberB straps, the proprietary technologies that make them unique, the four series available, and detailed compatibility across all major Rolex references. What makes RubberB different: 100% pure vulcanized rubber The most important thing to understand about RubberB straps is the material itself. Every single strap is manufactured from 100% pure vulcanized rubber — with absolutely no surface coating, no synthetic blends, no glue and no bonding agents of any kind. This matters because most competitors use silicone (cheaper, less durable) or rubber composites covered with a surface coating that eventually chips, cracks or discolours. RubberB works the material through the core: what you see is what the strap is made of, all the way through. Why vulcanized rubber outperforms silicone Colour stability: RubberB straps do not fade, even after prolonged saltwater exposure or tropical sun — critical for wearers in humid climates. Dust resistance: Pure vulcanized rubber does not attract dust or lint. The strap stays clean looking. Shape retention: The strap does not stretch, deform or develop a permanent set from daily wear. Hypoallergenic: Non-toxic, non-marking, non-allergen — exceeds FDA and BVGG certification requirements. Swiss manufacturing: Every strap is hand-finished in Switzerland to the exacting standards of the luxury watchmaking industry. Blocked Integration: the technology that changed rubber straps Blocked Integration is RubberB's core engineering innovation — and the reason why their straps look so different from generic rubber alternatives on a Rolex case. The technology works by embedding precisely micro-calibrated solid inserts into the strap's end pieces. These inserts are shaped to match the exact geometry of a specific Rolex case's lug holes, so when the strap is installed, it sits flush against the case — no gap, no wiggle, no movement. The visual result is striking: from the side profile, the strap appears to be part of the watch case itself, integrated like a factory configuration. Collectors often describe it as how a rubber strap "should have looked from Rolex." Important: Because Blocked Integration requires micro-calibration to each specific Rolex reference, there is no single "universal RubberB strap for Rolex." Each strap is engineered for a specific model — and in some cases, a specific generation of that model (e.g., Submariner pre-2010, 2010–2019, 2020–present). Our team at MisterChrono Singapore will identify the exact right version for your watch. VulChromatic: dual-colour rubber fusion VulChromatic is RubberB's patented dual-colour technology. It fuses two distinct shades of vulcanized rubber within a single strap with no visible joint, no stitching between colours and no bonding — the two colours are chemically united during the vulcanization process itself. This technology was developed specifically for the Rolex GMT-Master II family, where the bezel insert sports two contrasting colours. VulChromatic straps mirror this dual-tone identity on the wrist: GMT "Batman" (black/blue bezel): Black and blue VulChromatic strap GMT "Pepsi" (red/blue bezel): Red and blue VulChromatic strap GMT "Sprite" (green/black bezel): Green and black VulChromatic strap Explorer II (orange hand): Black with orange VulChromatic accent stripe All RubberB straps feature the brand's signature "T" design — a subtle identification mark that watch-knowledgeable eyes will recognize, without shouting branding at everyone else. The four RubberB series at MisterChrono Classic Series — the benchmark The original RubberB series and still the most popular. The Classic Series accommodates all wrist sizes from XXS to XL (14 to 21 cm / 5.5 to 8.25 inches) and mounts directly to your existing Rolex Oyster deployant clasp — no additional links or tools required beyond a standard spring bar tool. Available in a wide range of solid colours and VulChromatic dual-colour combinations. Couture Series — elevated refinement The Couture Series elevates the Classic with one critical detail: Gore Tenara stitching running along the strap's edges. Gore Tenara is the same thread used in high-performance outdoor gear — rot-proof, UV-stable and maintenance-free for life. The stitching transforms the strap into something closer to fine leather goods, adding a tailored luxury dimension to the rubber sport aesthetic. Tang Buckle Series — independent buckle system Designed for collectors who prefer not to use their Rolex Oyster clasp as the fastening mechanism — or who own multiple watches and want a strap that works independently. The Tang Buckle Series features a 316L stainless steel tang buckle (the same surgical-grade steel Rolex uses for case construction), offering a clean, traditional strap look with a different wrist feel than the deployant system. Rubber Cuff Series — unique texture, same performance The Rubber Cuff is RubberB's most distinctive creation. It looks and feels like a fine woven textile — the texture mimics soft twill or perforated fabric — but it is 100% rubber, therefore waterproof and maintenance-free. Available in black, blue and green, the Rubber Cuff is most frequently paired with the Rolex Milgauss, where it complements the watch's unconventional character. Full Rolex compatibility guide RubberB produces a dedicated, micro-calibrated strap for each Rolex reference. Here is the complete compatibility overview available at MisterChrono: Rolex model Key references Available series Notes Submariner 114060, 116610, 126610LN/LV/LB (ceramic & non-ceramic) Classic, Couture, Tang Buckle Generation-specific (pre-2010 / 2010–2019 / 2020+) GMT-Master II 116710BLNR, 116710LN, 126710BLRO, 126710BLNR, 126720VTNV Classic VulChromatic, Couture Dual-colour versions available (Batman, Pepsi, Sprite) Daytona 116500LN, 126500LN (steel ceramic bezel) Classic, Couture Oyster clasp version only Sea-Dweller 126600 (43mm), 116660 Deepsea Classic, Glidelock Series Glidelock clasp compatibility model-specific Explorer 214270, 124270 (Explorer I), 216570, 226570 (Explorer II) Classic, Tang Buckle, VulChromatic Explorer II: orange accent VulChromatic available Sky-Dweller 326934, 326935, 326938 Tang Buckle Series Requires notching — available in-boutique Oyster Perpetual 124300 (41mm) Classic Solid colours Milgauss 116400GV, 116400 Rubber Cuff Series Textile-effect rubber — black, blue, green Fitting your RubberB strap RubberB straps mount to your existing Rolex Oyster or Glidelock clasp — you do not need additional links. Installation requires a standard spring bar tool and takes approximately 5 minutes. The process: Remove your existing bracelet's spring bars from the Rolex case lugs. Insert the RubberB strap end pieces into the case lugs — the Blocked Integration inserts guide the strap into the correct position. Reinstall the spring bars to secure the strap. Attach your Rolex Oyster clasp to the strap's end loop. Complimentary strap fitting: For any RubberB strap purchased at MisterChrono Singapore, our team will install the strap on your watch at no charge. We also verify the correct reference compatibility before fitting. Caring for your RubberB strap After saltwater or pool exposure: Rinse with fresh water and dry with a microfibre cloth. Routine cleaning: A slightly damp cloth with mild soap. Any residue wipes away easily — vulcanized rubber does not absorb stains. Sunscreen contact: Avoid prolonged contact. Rinse after beach use. Storage: Keep away from extreme heat and direct UV light for long-term storage. For daily rotation, no special precautions needed. RubberB at MisterChrono Singapore MisterChrono is an authorised RubberB retailer. Every strap we carry is authentic, new and backed by manufacturer warranty. Our boutique stock includes all current series — Classic, Couture, Tang Buckle and Rubber Cuff — across the full range of Rolex-compatible references. Visit us at Mandarin Gallery, #03-04, 333A Orchard Road — Singapore's premier watch strap destination. Our advisors are watch enthusiasts themselves, with deep knowledge of every RubberB reference for Rolex. In Singapore's humid tropical climate, a RubberB vulcanized rubber strap is an especially practical upgrade: impervious to sweat, heat and humidity, it outlasts leather straps many times over while maintaining its shape and colour. Shop RubberB straps Full strap collection Written by David, watch strap specialist at MisterChrono. Expert in rubber, NATO and sport watch straps for luxury timepieces.
Learn more