Exploring Sphaera’s Desk Diver: A Blend of Tradition and Innovation
When I was asked to review this watch recently, I had to admit I wasn’t aware of Sphaera as a brand. Sphaera has been running since only 2023 and is the first watch brand to...
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Taking inspiration from 1960s Seiko waffle straps, the ZULUDIVER Seacroft FKM watch strap is a thoroughly modern design made without compromise. It is technically one of our most advanced diver straps with robust characteristics making it ideal for any watch which lives in challenging climates.
The scientific name of FKM is Fluoro-Elastomer. It is an extremely hard-wearing rubber compound highly resistant to salt water, aggressive chemicals, and extreme temperatures (as low as -45C and high as +300C). It is the perfect choice for a high-end rubber watch strap designed to be fitted to the toughest watches and tackle the harshest environments. Lastly the strap is finished with our brushed steel buckle that is deep etched with our trademark ZULUDIVER logo, so you can take reassurance from the build quality that comes with the name ZULUDIVER.
Lug Width |
20mm |
22mm |
Buckle Size |
18mm |
20mm |
Clasp Material | Stainless Steel |
---|---|
Clasp Tongue Width | 2mm |
Clasp Type | Pin buckle |
Strap Brand | ZULUDIVER |
Strap Length | 130 / 80mm |
Strap Material | Rubber |
Strap Material Finish | Waffle Pattern |
Strap Material Type | Rubber FKM |
Strap Style | Rubber Dive |
Strap Thickness | 4.5mm - 3mm |
Size Guide
The ‘lug width’ is simply the internal width measured between the lugs (where the watch strap fits) of the watch.
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