Relax Automatic 43.5mm: Our Flagship Dive Watch Reviewed
Our Flagship, Reviewed Honestly
The 43.5mm Relax Automatic Watch With NH35 Movement is the biggest watch we make — and the one that gets the strongest reactions. Here is who it is for, and who should size down.
On the Wrist
43.5mm is serious diameter. On wrists 7.25 inches and up, it wears balanced and commanding. Below 6.75 inches, consider our 39–40mm lines instead — fit beats flex every time (see our case sizing guide).
What Makes It Special
- Glide-lock style buckle: the included 43.5mm Case Set With Glide Buckle lets you micro-adjust bracelet length during the day — swelling wrists, wetsuit sleeves, summer heat
- NH35 heart: the industry-standard automatic — robust, serviceable anywhere, parts everywhere
- Dive DNA: high-contrast lume, rotating timing bezel, confident water resistance ratings
Who Buys This Watch
- Big-wrist buyers tired of watches that look lost
- Dive-style enthusiasts who want maximum presence
- Anyone upgrading from a first quartz watch to a serious automatic
Daily Wear Report
- Accuracy: NH35s typically regulate to ±10–15 sec/day in normal wear
- Comfort: the glide buckle matters more than expected — midday tightness disappears with one slide
- Weight: substantial but not exhausting; the bracelet distributes mass well
Customization Path
The platform accepts our standard part ecosystem:
- Full Black Dial for a murder-out blackout version
- No Date Sunburst Dial if you prefer cleaner symmetry at large sizes
- Straps — FKM rubber suits the dive mission best
Frequently Asked Questions
Is 43.5mm too big for daily office wear?
For larger wrists, no — it slides under cuffs fine thanks to moderate lug-to-lug proportions.
Can I swim with it?
Its dive-oriented sealing handles swimming; rinse after salt water. See our water resistance guide for rating details.
What makes the glide buckle worth it?
Tool-free on-the-fly adjustment — once you use it, fixed buckles feel primitive.