The Sellita SW200
The Swiss movement inside every Bausele — and what it actually does on your wrist
Most brands won't tell you what's inside. We will.
Every watch in the Bausele collection runs a Sellita SW200. It's a Swiss movement, made in Le Locle. We've built close to 20,000 watches around it.
This page is what we've learned doing that. Not a spec sheet copied off a distributor's PDF.
The specifications
| Manufacturer | Sellita, Le Locle, Switzerland |
| Type | Automatic, self-winding |
| Diameter | 25.6 mm |
| Thickness | 4.60 mm |
| Frequency | 28,800 vph (4 Hz) |
| Jewels | 26 |
| Power reserve | 38 hours |
| Winding | Bidirectional, automatic |
| Hacking seconds | Yes |
| Hand-winding | Yes |
Four hertz means the seconds hand moves in eight steps a second. Close enough to a sweep that your eye reads it as smooth.
Thirty-eight hours means if you take it off on Friday night, it has stopped by Sunday morning. That's normal for this class of movement. Plan for it, or wear it.
The four grades — and the one we specify
Sellita sells the SW200 in four grades. Same architecture, different regulation and finishing. This is where brands quietly cut cost, so it's worth knowing.
| Grade | Rated accuracy |
|---|---|
| Standard | ±12 sec/day |
| Special | ±7 sec/day |
| Premium | ±4 sec/day |
| Chronometer (COSC) | −4 / +6 sec/day, certified |
We specify Special grade.
Not the cheapest, not the most expensive. At our price point that's the honest place to sit: a meaningfully better-regulated movement than the entry grade, without charging you for a certificate that lives in a drawer.
What we actually see, across 20,000 watches
Here's where a spec sheet stops being useful.
Sellita's ±7 seconds a day is a bare movement, tested in controlled positions on a bench. Your watch is a cased movement, on a human wrist, in an Australian summer or a European winter, worn hard some days and left in a drawer on others.
So the figure we stand behind is ±20 seconds a day. That's the tolerance we're prepared to guarantee across every watch we've ever made, in any climate, on any wrist.
What actually happens is usually much better than that. Owners who've timed theirs and written about it in our reviews regularly report around ±4 seconds a day — better than the movement's own bench rating.
We publish the conservative number because we'd rather under-promise on the one thing you can measure yourself.
SW200 vs ETA 2824-2
The question everyone asks, so here's the straight answer.
The SW200 is a clone of the ETA 2824-2, and that isn't an insult — it's the point. Same dimensions, same 4 Hz, same 38-hour reserve. Parts are largely interchangeable. Any watchmaker who can service a 2824 can service an SW200. The SW200 runs 26 jewels to the 2824's 25.
The real difference was never mechanical, it was commercial. ETA belongs to the Swatch Group. When Swatch restricted supply to brands outside the group, Sellita — who had spent years assembling ETA calibres under contract — started producing their own. Independent brands went to Sellita because the alternative was not building watches at all.
We have only ever built with Sellita. That's a deliberate choice, and supply is a large part of it: no dependence on a competitor's parent company deciding whether we get movements next year.
So when someone tells you a Sellita is the cheap version of an ETA, they have the history backwards. It's the movement that kept independent Swiss watchmaking supplied.
Why we chose it
Because you can get it repaired anywhere in the world, by anyone.
That sounds unglamorous. It's the most important thing about a mechanical watch you intend to keep. Components are everywhere. Every competent watchmaker knows the calibre. You will never be told your watch has to go back to the brand, or back to Switzerland, or that a part is on eighteen months' back-order.
Add to that: it's easy for us to source, with no risk of the Swatch Group deciding not to deliver. And it is simply a very reliable, very good movement.
Australian design and soul. Swiss precision. The SW200 is the Swiss half of that sentence.
Servicing
Every five years.
The movement itself will usually run well past that. The reason for the interval isn't the movement — it's the gaskets that keep water out, and the lubricants that stop wear you can't see. Neither announces when it has gone. That's the failure that costs you a watch rather than a service.
Cost is usually around USD 250–300, depending on the country and on whether anything actually needs repairing rather than just cleaning and regulating.
You do not need to send it to us. You do not need to send it to Switzerland. Any competent watchmaker can do it.
Signs it's overdue: power reserve falling well short of 38 hours, accuracy drifting outside its usual range, or the rotor sounding rougher than it used to.
See also: How to service your automatic watch and the care guide.
Which Bausele watches use it
All of them. The entire Elemental dive collection — Oceanic Blue, Coorong Mist, Inferno Black, the Elemental Bathurst — and the Air Force 5th Generation.
One addition is coming: a watch launching soon runs the hand-wound Sellita SW216-1, the same base architecture as the SW200 without the automatic winding module, with a small seconds at six. More on that closer to launch.
Bespoke commissions sit outside the collection. When we build a watch with a specific unit or organisation, the specification is theirs — occasionally that means a different calibre chosen for their conditions. Each commission states its own movement on its own page.
Frequently asked questions
Is the Sellita SW200 a good movement?
Yes. It's the workhorse Swiss automatic of the independent watch industry — reliable, accurate within its grade, and serviceable by any competent watchmaker anywhere in the world. We've built close to 20,000 watches around it.
Is Sellita as good as ETA?
Functionally, yes. The SW200 is a clone of the ETA 2824-2 — same dimensions, same frequency, same power reserve, with largely interchangeable parts. Sellita spent years assembling ETA calibres before producing their own. The SW200 also has 26 jewels to the 2824's 25.
How accurate is the Sellita SW200?
Sellita rates the four grades at ±12, ±7, ±4 seconds a day and COSC-certified. Bausele specifies Special grade, rated ±7. On a cased watch in real conditions we stand behind ±20 seconds a day, and owners who time theirs regularly report around ±4.
What is the power reserve of the SW200?
38 hours fully wound. Off the wrist on a Friday night, it will have stopped by Sunday morning.
What movement does Bausele use?
The Swiss Sellita SW200, across the whole collection — every Elemental and the Air Force 5th Generation. A hand-wound Sellita SW216-1 model is coming. Bespoke watches commissioned by individual units are specified with the client and may use a different calibre.
Does a Bausele have a Swiss movement?
Yes. Every watch in the Bausele collection runs the Sellita SW200, a Swiss movement made in Le Locle. Bausele watches are Australian in design and soul, with Swiss precision inside.
How often does an SW200 need servicing, and what does it cost?
Every five years, for lasting accuracy and water resistance. Usually around USD 250–300, depending on the country and whether anything needs repairing beyond cleaning and regulating. Any competent watchmaker can do it — it doesn't need to come back to us.
Can the Sellita SW200 be repaired anywhere?
Yes, and that's why we use it. Parts are widely available and every watchmaker knows the calibre. You will never be stuck waiting on a proprietary component.