Tropical Style Watch Bands

Tropical Style Watch Bands

In the early 1960s, as recreational diving surged and the great dive watch era began, a Swiss rubber strap emerged as the standard issue for the most iconic tool watches ever made. The design was simple and considered: a perforated natural rubber body for drainage and breathability, a waffle-patterned underside for comfort and grip, and a taper that suited the proportions of the dive watches it was built for. For two decades it was the default strap on Rolex Submariners, Blancpain Fifty Fathoms, and Jaeger-LeCoultre dive references straight from the manufacturer. It is now one of the most collected and replicated strap designs in the history of watchmaking.

CNS Watch Bands produces the largest collection of tropical style watch bands available from a single retailer. The range covers multiple textures and constructions — perforated basket-weave, honeycomb, flat perforated, and more — in FKM fluorocarbon rubber and TPU, across the full colour spectrum from period-correct black through to vibrant contemporary hues. Select models in the range are produced from a genuine 1960s mold; the rest are developed from detailed vintage references to replicate the proportions, texture depth, and underside pattern of the originals as closely as modern tooling allows. Available in 18mm, 19mm, 20mm, 21mm, and 22mm.

The History of the Tropical Style Rubber Strap

The diving boom of the early 1960s created a specific problem: leather watch straps deteriorated rapidly in saltwater. Metal bracelets were functional but uncomfortable for prolonged underwater wear. The solution was a perforated rubber strap — waterproof, flexible, quick-drying, and comfortable against the skin in and out of the water.

The design that emerged became the reference for dive watch rubber straps for the next two decades. Its defining features were not arbitrary: the perforations allowed saltwater to escape through the strap rather than pooling beneath it; the waffle pattern on the underside reduced skin contact area for improved comfort and reduced sweating; the rubber compound was soft enough to wear against a wetsuit without chafing but firm enough to hold its shape under pressure.

Rolex, Blancpain, and Jaeger-LeCoultre supplied these straps as standard issue on their dive references of the era. A Rolex Submariner from the 1960s or early 1970s, as it left the manufacturer, wore a tropical style rubber strap — not a steel bracelet, not a leather strap. The bracelet came later, as preferences changed.

Today, original examples of these vintage rubber straps in wearable condition are collector's items commanding significant prices. The design endures because it was correct from the beginning — no subsequent dive rubber strap design has materially improved on the original's combination of comfort, function, and visual character.

The CNS Tropical Style Collection — Textures and Constructions

Tropical style straps are not a single design but a family of related constructions, each with its own texture, character, and occasion:

Basket-Weave Perforated

The most historically reference-accurate tropical style texture — the cross-hatched surface pattern with circular perforations that defined the original 1960s design. The basket-weave creates a fine, regular grid across the strap surface with holes punched through at regular intervals. From the underside: the waffle pattern, as on the original.

The CNS curved-end basket-weave model is produced from a genuine 1960s mold — the proportions, texture depth, and taper are direct from the original tooling. The material is TPU rubber — slightly stiffer than FKM but with a higher gloss finish and inherent dust-repellent properties that better replicate the appearance of vintage rubber.

Best for: vintage dive watches, Rolex Submariner, Blancpain Fifty Fathoms, period-correct collector pairings.

FKM Tropical Style — Basket-Weave and Variants

The majority of the CNS tropical style range uses FKM fluorocarbon rubber — the premium dive watch material used on modern Omega, Rolex, and Tudor rubber straps. FKM is softer and more pliable than TPU, with superior resistance to heat, seawater, chlorine, UV, and body chemistry. It does not attract dust, maintains its colour stability over years of active use, and ages without cracking or brittleness.

FKM tropical style straps are produced from molds developed from detailed vintage references — measuring and replicating the original dimensions, taper, texture depth, and underside pattern as faithfully as modern tooling allows. Available in basket-weave, honeycomb, and flat perforated textures across the full colour range.

Best for: daily active wear, diving, swimming, any use where FKM's superior durability and comfort are the priority over strict period accuracy.

Honeycomb Texture

A hexagonal cell pattern across the strap surface — more open and graphic than the basket-weave, with larger perforations and a more contemporary visual character. The honeycomb texture provides excellent breathability and a modern aesthetic that suits newer dive watches as naturally as it suits vintage references.

Best for: modern dive watches, Seiko Prospex, Omega Seamaster, contemporary references where a vintage-inspired strap is wanted without strict period accuracy.

Flat Perforated

A smooth rubber surface with punched perforations rather than a textured weave — the most minimal of the tropical style constructions. Lower profile than the basket-weave, with a cleaner visual at a distance. The perforations provide drainage and breathability without the surface complexity of the woven textures.

Best for: watches where a clean rubber strap with vintage reference is wanted without the visual complexity of the basket-weave.

FKM vs. TPU — Which to Choose

Both materials are used in the CNS tropical style range, each with distinct properties:

FKM (fluorocarbon rubber) is softer, more pliable, and more chemically resistant. It conforms to the wrist more quickly, feels lighter in wear, and performs better under sustained exposure to seawater, chlorine, and UV. The surface has a slightly matte quality and does not attract dust. For buyers who will wear the strap regularly in and out of water, FKM is the performance choice.

TPU (thermoplastic polyurethane) is slightly stiffer, with a higher gloss finish that more closely replicates the appearance of original 1960s rubber — which had a characteristically shiny surface quite unlike modern matte rubber compounds. TPU is inherently dust-repellent and maintains its shape firmly under wear. For buyers who prioritise visual period accuracy over soft-touch comfort, TPU is the closer match to the original.

The CNS curved-end model — produced from a genuine 1960s mold — uses TPU specifically because the material's gloss finish more accurately replicates the original's appearance. All other models in the tropical style range use FKM.

Colour — From Period-Correct to Contemporary

The original 1960s tropical style straps were produced primarily in black, with grey and brown variants for specific references. Today the CNS collection covers the full spectrum:

Black — the most historically accurate and the most versatile. Suits every dial colour and case metal. The correct choice for a period-correct pairing with a vintage Submariner, Fifty Fathoms, or Memovox.

Grey and brown — the secondary period-correct colours. Grey suits steel cases and cool-toned dials; brown suits vintage watches with patinated dials and warm tone hardware.

Navy and blue — the most popular contemporary colourways beyond black. Navy suits blue-dialled dive watches particularly well — Tudor Black Bay Blue, Omega Planet Ocean, Seiko Prospex blue references.

Orange, yellow, and red — the most visible underwater and the most vibrant on the wrist. Bold colourways for buyers who want the tropical style construction with a contemporary visual statement. Yellow was a recognised variant in the vintage era — practical for underwater visibility.

White and cream — less common but striking on both vintage and modern references. A white tropical style strap on a vintage Submariner is a distinctive and increasingly collected combination.

What Watches Suit Tropical Style Rubber Straps?

Vintage dive watches — the primary and most historically authentic pairing. Rolex Submariner (all references), Blancpain Fifty Fathoms, Jaeger-LeCoultre Memovox Deep Sea, Enicar Sherpa, Omega Seamaster 300. These are the watches the original strap was designed for and issued with.

Modern dive watches — the most widely worn contemporary pairing. Omega Seamaster, Tudor Black Bay, Seiko Prospex, Rolex Submariner, IWC Aquatimer. The tropical style strap gives a modern dive watch an immediate vintage character without looking costume or period-inaccurate.

Sport watches with rubber heritage — chronographs, pilot watches, and robust sport watches that were associated with rubber straps in their era. A tropical style strap on a vintage Omega Speedmaster is a visually interesting and historically defensible combination.

Any watch where the buyer wants vintage character with modern performance — the tropical style strap is the single most effective way to give a modern or vintage watch the aesthetic of the dive era without using a strap that requires period-correct sourcing.

Sizing Your Tropical Style Watch Band

Tropical style straps are sized by lug width. The standard curved-end model sits close against the case — note that this is the correct fit for the vintage style and the strap is not designed to sit flush against the case in the same way as an integrated rubber strap.

Frequently Asked Questions

What is a tropical style watch strap? A tropical style watch strap is a rubber dive strap inspired by the perforated rubber bands issued on major dive watches in the 1960s and 1970s — including Rolex Submariner, Blancpain Fifty Fathoms, and Jaeger-LeCoultre dive references. The defining features are a perforated or textured surface for drainage and breathability, a waffle-patterned underside for comfort, and a taper designed for dive watch proportions.

What is the difference between FKM and TPU tropical style straps? FKM is softer, more pliable, and more chemically resistant — the better performance choice for regular diving and daily active wear. TPU is slightly stiffer with a higher gloss finish that more closely replicates the visual character of the original 1960s rubber. The CNS curved-end model uses TPU for period accuracy; all other models use FKM for performance.

Are tropical style straps waterproof? Yes. Both FKM and TPU are fully waterproof — unaffected by freshwater, saltwater, chlorine, and prolonged submersion. The perforations allow water to drain through the strap rather than pooling beneath it, making tropical style straps among the most comfortable rubber options for diving and swimming.

What is the waffle pattern on the underside? The waffle or grid pattern on the underside of a tropical style strap reduces the area of contact between the rubber and the skin — improving comfort, reducing sweating, and allowing airflow during wear. It is a direct feature of the original 1960s design and is present on all CNS tropical style models.

Are any CNS tropical style straps made from original vintage molds? Yes. The CNS curved-end model is produced from a genuine 1960s mold — replicating the original proportions, texture depth, and taper directly. The rest of the range uses molds developed from detailed vintage references to replicate the original design as closely as modern tooling allows.