Sinn walked into its first-ever Watches and Wonders with four new watches instead of one. The 544 and 544 RS bring a lugless, integrated-bracelet look the brand has never really done before. The 308 is a purpose-built hunting watch with a moonlight indicator. The 936 S is a black-coated chronograph limited to 100 pieces.
The images in this article were generated with AI for illustration. They show recognizable Sinn models based on real reference photography, but are not photographs of a specific watch for sale.
The Short Answer
- Sinn 544 / 544 RS: 38.5mm three-hand watch, Sellita SW200-2 automatic, 200m water resistance, roughly $1,600 to $2,020 depending on strap or bracelet.
- Sinn 308: 40mm hunting watch with a moonlight indicator, Sellita SW 382-1 automatic, roughly $2,980 to $3,390.
- Sinn 936 S: 43mm chronograph, black hard coating, limited to 100 pieces, Sinn SZ05 caliber (based on the ETA Valjoux 7750).
- All four run on Sellita or ETA-based movements, not in-house calibers, which is consistent with how Sinn prices its entire catalog.
Sinn 544 and 544 RS: A New Direction for the Brand
Sinn built its name on pilot and dive tools with conventional lugs. The 544 breaks from that with a hooded, lugless case that reads as an integrated bracelet watch, a design language pulled from the brand's own 144 chronograph and 244 references.
Sinn's first Watches and Wonders lineup: the 544 RS, the 308 hunting watch, and the 936 S chronograph.
Specs and Pricing
| Spec | 544 / 544 RS |
|---|---|
| Case diameter | 38.5mm |
| Case height | 10mm |
| Movement | Sellita SW200-2 automatic, 60-hour power reserve |
| Water resistance | 200 meters |
| Strap options | H-link steel bracelet, leather, rubber |
| Price | Roughly $1,600 (strap) to $2,020 (bracelet) |
The 544 RS on its H-link bracelet, the red seconds hand is the only visual difference from the standard 544.
The dial is matte black with a date window at 3 o'clock and Arabic numerals around the perimeter. The only difference between the two versions is the seconds hand: white on the standard 544, red on the 544 RS.
At $1,600 to start, the 544 sits below most integrated-bracelet sports watches from bigger names, and it does it with a genuinely different silhouette than anything else currently in Sinn's lineup.
Sinn 308: A Hunting Watch With a Moonlight Indicator
The 308 is aimed at a specific job: reading a dial in low, changing outdoor light. The dark green sunburst dial pairs hybrid ceramic luminescent hour markers with a small sub-dial at 6 o'clock that indicates whether ambient moonlight will be strong enough to read the dial without a flashlight.
The 308's moonlight indicator at 6 o'clock is a genuinely unusual complication for a production tool watch.
Built for Field Use, Not Just Field Style
The case runs 40mm at 12mm thick in satin-finished steel, rated to 200 meters and tested to DIN 8309 for antimagnetic resistance. Sinn's Ar-Dehumidifying Technology fills the case with an inert gas and a drying capsule, the same system used on the U1 dive watch, to keep the crystal from fogging during rapid temperature swings.
- Movement: Sellita SW 382-1 automatic
- Water resistance: 200 meters (20 bar)
- Special feature: Ar-Dehumidifying Technology, moonlight indicator sub-dial
- Price: Roughly $2,980 (strap) to $3,390 (bracelet)
On the wrist, the 308's green dial and olive strap read closer to outdoor gear than a dress watch.
This is a genuinely niche complication. Most buyers will never plan a hunt around moon phase visibility, but the dial legibility gains from the hybrid ceramic lume carry over to any low-light situation, which is a real, everyday benefit disguised as a novelty spec.
Sinn 936 S: A Limited Chronograph in Black
The 936 S takes Sinn's existing 936 chronograph platform and finishes the 43mm steel case in a black hard coating, then adds red chronograph hands and rhodium-plated hour and minute hands with white luminescent fill. It is capped at 100 pieces.
The 936 S runs Sinn's SZ05 caliber, an in-house-modified base of the ETA Valjoux 7750.
The movement, Sinn's SZ05, is not a clean-sheet in-house caliber. It is built on the ETA Valjoux 7750 architecture that Sinn has modified and branded under its own designation, a common practice among independent German and Swiss brands that want chronograph reliability without the cost of developing a caliber from scratch.
A 100-piece limited run on a well-proven movement platform is a low-risk way for Sinn to test how much appetite exists for black-coated cases in its catalog.
Water resistance sits at 100 meters with a screw-down crown and Sinn's D3 moisture-sealing system, and the case is rated magnetic-resistant to 100 mT. Regional launch pricing at Watches and Wonders put the 936 S in the same general bracket as Sinn's existing 936 chronograph, with US and EU retail pricing to be confirmed as the model reaches Sinn's boutiques and authorized dealers.
How These Compare to Sinn's Core Lineup
None of these four watches replace anything in Sinn's existing catalog. If you already know the Sinn 556, U1, 103 St, and 104, here is where the new releases slot in.
| Model | Case | Movement | Starting Price |
|---|---|---|---|
| 556 (existing) | 38.5mm | Sellita SW200-1 | ~$1,180 |
| 544 / 544 RS (new) | 38.5mm | Sellita SW200-2 | ~$1,600 |
| U1 (existing) | 44mm | Sellita SW200-1 | ~$2,500 |
| 308 (new) | 40mm | Sellita SW 382-1 | ~$2,980 |
| 103 St (existing) | 41mm | Sellita SW500 | ~$2,600 |
| 936 S (new, limited) | 43mm | Sinn SZ05 | TBD, near 936 pricing |
The 544 is the closest thing to a direct sibling here. It shares the 556's case diameter but asks a premium for the new integrated-bracelet design and the newer SW200-2 movement generation.
Which One Is Actually Worth Chasing
Buy the 544 or 544 RS if you want a genuinely new silhouette from a brand that rarely changes its designs. Buy the 308 if low-light legibility matters to how you actually use a watch, not just how it photographs. Skip the 936 S unless you specifically want a limited piece and do not mind that the movement is a modified 7750 rather than a from-scratch caliber.
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Frequently Asked Questions
What movement does the Sinn 544 use?
The Sellita SW200-2 automatic, a 60-hour power reserve version of the same base caliber family found in the existing Sinn 556.
Is the Sinn 936 S an in-house movement?
No. The SZ05 caliber is Sinn's own modification of the ETA Valjoux 7750 chronograph architecture, not a movement designed and built entirely in-house.
How many Sinn 936 S watches were made?
Sinn capped the 936 S at 100 pieces for this release.
What is the moonlight indicator on the Sinn 308?
A small sub-dial near 6 o'clock that indicates expected ambient moonlight brightness, intended to help gauge dial legibility in low outdoor light without a flashlight.
How does the Sinn 544 compare to the Sinn 556?
Both share a 38.5mm case, but the 544 introduces a new lugless, integrated-bracelet design and the newer SW200-2 movement, while the 556 keeps Sinn's classic pilot watch case shape at a lower price point.