Circula AquaSport

The brand Circula was born in Pforzheim, the watchmaking heart of the Black Forest, in Germany. It was founded in 1955, so you can see that the watch I’m reviewing today was produced by an experienced company.
After the release of the Classic and the Heritage, Circula is now coming with a retro Divewatch, the AquaSport.

The specs

Build 3-piece, screw down case back, screw down crown
Material 316L stainless steel
Finishing Brushed by hand and polished edges, engraving on case back and crown
Bezel 120-click unidirectional, scratch-resistant sapphire bezel with indices from Swiss Super-LumiNova® BGW9 (blue afterglow)
Crystal Scratch-resistant sapphire crystal, slightly curved and anti-reflective coated on the inside
Water resistance 20 ATM
Color Silver

Diameter 39 mm
Thickness 12.8 mm without crystal, 13.4 mm incl. crystal
Length over lugs 46 mm
Strap width 20 mm
Max. wrist circumference 23 cm
Weight 130 g

Caliber Automatic (self-winding) movement Swiss Technology Production (STP) 1-11, Made in Switzerland
Vibrations 28.800
Power reserve 44h max.
Accuracy -0/+15 Sec./Day, regulated in 5 positions
Bearing stones 26 jewels
Special features Incabloc ® shock protection, ball bearing rotor, bidirectional winding rotor, hacking and manual winding function, quick correction of date

Place of production Pforzheim, quality Made in Germany
Dial Applied indices, filled with Swiss Super-LumiNova® C3 (green afterglow)
Hands Printed with Swiss Super-LumiNova® C3 (green afterglow)
Strap Stainless steel Beads of Rice strap with quick exchange system and clasp with fine adjustment in 7 positions

The case

The AquaSport was inspired by Circula diving watches from the 70s. The pillow-shaped case alternates brushed and polished finishes in a contained width of 39mm and a thickness of 12.8mm. Although it might be too small for those with lumberjack wrists, these are the dimensions one can expect from a watch meant be retro/vintage.
The thin screw down crown is located at 3 o’clock and is engraved with the brand’s logo. I must admit it was a bit difficult to screw it back in without actioning the bezel, but the blame goes to my (too) big fingers. The coin-edge bezel features a scratch-resistant sapphire inlay which might be a bit harder to read compared to a ceramic one but it sticks totally to the vintage identity. I really like it! One can add that it’s perfectly aligned and doesn’t suffer from too much back-play.

As mentioned in the specs, the sapphire glass is slightly curved. It’s also efficiently AR coated, allowing for a good legibility in most situations.

The dial

The AquaSport’s dial is absolutely gorgeous! The main part of the background is dark blue and embossed with waves, while the outer part is made of a white layer above the blue one and receiving the orange and cream indices. This color scheme is specific to the version I’ve chosen, there are other variants available at Circula’s website.

The Movement

Just like the color scheme, the AquaSport is available with multiple movement options. I went with the most affordable one, the STP 1-11. I won’t start a debate around the available movements, IMHO they’re all qualitative and satisfying. Should you go with the COSC Sellita SW200, you’ll obviously get the best option. Hats off to Circula for offering the choice between those 2 and the ETA 2824-2 at a more than reasonable price point.

The Bracelet

The Stainless steel Beads of Rice bracelet features a quick release system as well as 7 fine adjustment positions. I’ve immediately found it very comfortable, but be aware that you can also get a matching tropic rubber strap.


The Circula Aquasport is quite different from the watches I’m used to wear. Not only is it smaller but I also must confess that I’m generally not a retro watch guy. That being said, it’s with a real pleasure that I wear the AquaSport! Its quality goes beyond expectations and it carries a genuine identity, which is more than welcome. One can definitely feel that Cornelius Huber, the founder’s grandson, has a strong experience in the watchmaking area and he really knows what he’s doing. I warmly recommend you to pay them a visit!

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