Strehler Sirna - References, Prices and Owners' Reviews

Strehler Sirna was launched in 2023 as the first chapter of a brand meant to make independent watchmaking genuinely wearable day to day: a three-hand watch with small seconds, entirely conceived, produced, and finished in Sirnach, with a simple but demanding ambition. Sirna aims to be a weekday watch in the best sense: elegant without fragility, precise without intimidation, and consistent in every detail, from the case to the hands and an anodized titanium dial with a three-dimensional pattern. Beneath that apparent restraint, it introduces an in-house automatic movement developed over many years, designed to be robust, easy to maintain, and slim enough to remain comfortable under a cuff.

Design & readability: the model’s identity

Sirna adopts a reassuring layout: central hours and minutes, small seconds at 6 o’clock, and a clear minute track carried by an applied chapter ring. This “classic” choice is deliberate, because it leaves room for the signature element: a hard titanium dial center that is machined, laser-engraved, then hand-polished and anodized, whose relief catches light like a sculpted surface. The effect is not decorative in a gratuitous sense: it adds depth and an immediately recognizable personality while keeping information in its place. In use, the read stays simple despite a highly worked dial, because the eye naturally follows the minute ring and returns to the hands.

This “material” identity is reinforced by execution choices that avoid overstatement: steel hands shaped and hand-polished, restrained typography, and a small-seconds area framed by its own applied ring, structuring the read without adding visual noise. The crown carries a blue titanium insert that echoes the dial, creating a coherent whole even in profile. The result is a watch that does not chase spectacle, but rewards attention, with a relief signature that shifts with light while remaining readable on the move.

Case, strap, and everyday comfort

The “medical-grade” stainless-steel case is stated at 40mm in diameter and 8.5mm thick, with a lug-to-lug length of about 47mm. On paper, that is the modern weekday-watch recipe: enough presence without excess, and, above all, rare thinness for an automatic, helping the watch slide under a cuff. The concave profile supports that perception: the watch looks thinner than it measures, and it stays balanced despite elongated lugs. Day to day, 8.5mm thickness on a real automatic changes comfort, especially if you wear the watch for long hours or at a keyboard.

Both front and back sapphire crystals are anti-reflective on both sides, stabilizing the read and reducing reflections that could otherwise swallow the dial’s relief. The sapphire exhibition back is secured by four screws, a straightforward and reassuring solution for a use-oriented watch. Stated water resistance is 3 ATM, meaning careful everyday life (rain, hand washing) with no aquatic ambition, coherent for a dress-leaning piece. The leather strap (calf, taupe or brown depending on configuration) and steel pin buckle reinforce the logic: comfort, suppleness, easy adjustment. In real life, the long lugs require a well-fitted strap, because it ensures case stability and therefore quick, effortless reading.

Movement: architecture, performance, and servicing

Sirna houses the SA-30 in-house automatic calibre, fully developed, manufactured, and finished internally, with “30” referring to the movement’s diameter (30mm). The design goal is explicitly use-driven: create a thin but not ultra-thin movement that would become fragile, with parts sized for robustness and maintenance rather than brochure performance. Frequency is 3Hz (21,600vph) and the stated power reserve reaches 60 hours, which is highly comfortable for watch rotation. The balance is free-sprung with regulating screws, and the escapement is a Strehler-signed Swiss lever, placing regulation in a serious, long-term framework. Here, the movement is conceived as a reliable engine before it is a story.

The SA-30’s construction is also an aesthetic stance: a skeletonized 18K gold rotor, bridges drawn to follow the case curvature, and visible finishing that is not merely cosmetic but structural (polished bevels, inward angles, circular Geneva stripes, perlage, grained wheels). The movement is stated at 4.3mm in height, explaining the watch’s overall thinness and reinforcing the sense of a coherent whole rather than a movement simply “placed” inside a case. For servicing, the logic is that of a high-end automatic: water-resistance checks based on use, periodic servicing, and crown operations performed without harshness. In this philosophy, maintenance is eased by an architecture designed without shortcuts, which matters as much as finishing in daily ownership.

Conclusion

Sirna is a daily travel three-hander: slim, readable, and built around a sculpted titanium dial that gives strong identity without harming function. It is for those who want an independent watchmaking piece that is genuinely wearable, with an in-house movement designed to last and be serviced, rather than a fragile style exercise. The decision comes down mainly to comfort (length, strap fit) and your affinity for a highly alive “material” dial. To confront this fiche with real-life wear impressions and long-term feedback, consult Dialicious customer reviews.

(Updated April 2026)