Hands-On: The New ISOfrane VS 1969 Straps

ISOfrane straps have a special place in diving history. As a 1960s creation, the original model became a fixture for divers due to its flexibility, durability, and comfort. Today, modern versions of the straps are used both for their original purpose and as everyday accompaniments. Until now, though, only one design was available. Today, we take a look at the new ISOfrane VS 1969, a strap with a history of its own.

If you’re not familiar with Rick Marei, he’s the force behind the modern ISOfrane and Tropic straps. In addition to these accessory brands, he also owns Synchron and Aquadive. Finally, he leads Aquastar. Yes, the guy loves the history of dive watches, and we thoroughly enjoy everything he releases. Now, a new strap usually wouldn’t justify a dedicated article, but when a vintage classic returns, it’s worth a closer look.

The ISOfrane VS 1969 — some history

Admittedly, I always thought that the ISOfrane strap we know and love was the brand’s only model. After all, it’s well known and is seen as the ultimate accompaniment for a dive watch. However, there was a second strap with an entirely different design. In fact, the ISOfrane VS 1969 has been lurking under our noses since, unsurprisingly, 1969. As we can see in a vintage advertisement, the strap was an OEM offering on the original Aquastar Benthos 500. Smaller versions came on other Aquastar models, such as the Seatime.

In October, Aquastar announced the new Benthos Professional and took the opportunity to quietly reintroduce the ISOfrane VS 1969 as the standard strap option. I received the watches for review before the embargo date, but the straps weren’t quite ready for shipment. Still, I wanted to try them, and Rick was gracious enough to send a couple of samples a few months later.

A different type of strap than the original ISOfrane

The original ISOfrane is a heavy-duty dive strap. Critics often claim it’s better on larger wrists and chunkier watches. Notably, it can feel rather long since it’s meant to fit over a thick wetsuit. I’d say that these attributes make it functional and give it character. The ISOfrane VS 1969, however, is a different strap altogether.

First, it’s thinner and has vertical vents. Second, it tapers along both the length and thickness. Finally, it uses quick-release spring bars, whereas the original is meant to use beefy, thick-gauge removable spring bars. All in all, this is a more approachable strap for daily use.

Several options

The new ISOfrane VS 1969 is made of vulcanized natural rubber and comes in 20mm or 22mm widths. Four color options are available — black, blue, orange, and green. Each comes with two sliding keepers and a stainless steel buckle. Like the rest of the strap, the buckle is a much slimmer affair than on the original ISOfrane.

Pairing the ISOfrane VS 1969 with a couple of candidates

Naturally, I put the ISOfrane VS 1969 on an Aquastar and chose the Benthos 500 re-edition. I found it to be the perfect partner. It’s comfortable, and the style perfectly complements the watch. Plus, for a smaller wrist like mine, it didn’t feel too long or too stiff. With the orange hand, the matching strap provided just the right amount of contrast.

Then, I put the black ISOfrane VS 1969 on one of my Seiko Ashtray divers. This is a watch that normally belongs on a vented rubber strap. However, with the opportunity to put it on something more flexible and comfortable, I gave it a shot. It did a nice job of showing how versatile these straps can be and that most dive watches should be a good match.

A great option for modern and vintage divers

The ISOfrane VS 1969 is now available on the brand’s website and lists for US$99. While not inexpensive, it also isn’t out of line with other premium rubber straps. Plus, it’s nice to have another option with roots in the 1960s on the market. If you’re looking for a great dive strap with more everyday comfort, this is a nice choice.