Mido Multifort 8 Two Crowns Review: An Overlooked, Ultra-Slim Dive Tool

Dual-crown sports watches hold an enduring appeal in horological history. Originating from the twin-crown Super-Compressor cases engineered by Ervin Piquerez S.A. (EPSA) in the late 1950s and 1960s, the design was built to reinforce water resistance through water pressure while offering an internal rotating timing ring. Most modern interpretations lean heavily into vintage reissues, often saddled with cumbersome case thicknesses, elongated lugs, and slab-sided profiles.

The Mido Multifort 8 Two Crowns (Ref # M047.507.17.041.00) approaches this format from an entirely modern perspective. Merging the geometry of an integrated sports watch with the functional internal rotating bezel of a technical diver, this model represents an ultra-slim, versatile tool watch. While it routinely flies under the radar compared to the brand’s mainstream sub-aquatic lines, it is an assertive, mechanically accomplished instrument that warrants serious consideration.

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Brand Overview

Mido is an exceptional Swiss brand with more than a century of continuous production. Founded in 1918 by Georges Schaeren and currently operating from Le Locle in the Jura Mountains, the brand takes its name from the Spanish phrase “Yo mido” (“I measure”) - an etymology that underscores a dedication to technical measurement and architectural structural integrity. Operating under the Swatch Group umbrella, Mido consistently delivers some of the highest value propositions in Swiss watchmaking, combining high-grade materials with advanced movement architectures.

When enthusiasts discuss Mido dive watches, attention almost universally shifts toward the Ocean Star family. Registered in 1944 and brought to market in 1959 with a monocoque single-shell case and the Aquadura cork sealing system, the Ocean Star line - ranging from the vintage-inspired Tribute and Decompression Worldtimer to modern 200C and 39mm iterations - remains the commercial centerpiece of the brand’s nautical offerings. If you want more context on the brand’s mainstream diver positioning, our Tissot Seastar 1000 vs. Mido Ocean Star 200 comparison is a useful place to start.

However, Mido’s oldest active product lineage is the Multifort. Introduced in 1934, the original Multifort was one of the earliest wristwatches to combine automatic winding, water resistance, and anti-magnetism into a single civilian tool. The Multifort 8 Two Crowns honors this functional DNA, translating historical resilience into a contemporary architectural silhouette.

Watch Overview

The Multifort 8 Two Crowns ref. M047.507.17.041.00 embodies a design ethos Mido terms “Technometry” - the fusion of high-precision watchmaking technology and calculated geometry. Driven by an automatic movement based on an ultra-slim ETA platform, the watch pairs a technical internal rotating flange with an angular 316L stainless steel case, an embossed rubber strap, and a deep maritime dial.

Dial

The dial of the Multifort 8 Two Crowns is finished in a deep maritime blue adorned with horizontal relief stamping. These longitudinal grooves draw direct inspiration from the Geneva stripes that defined earlier Multifort collections, referencing the structural suspension cables of Sydney Harbour Bridge - a longstanding architectural touchstone for Mido.

Under changing light, the dial dynamic changes noticeably. In direct daylight, the horizontal bands reflect bright cobalt and royal blue tones; in softer indoor lighting, the hue recedes into an understated midnight navy.

Legibility is central to its tool-watch mandate. Mido employs applied, faceted indices that sit slightly recessed into the outer rim of the dial. The cardinal points are distinguished by broader rectangular and trapezoidal markers, ensuring orientation in low visibility. The faceted, diamond-cut hour and minute hands feature a satin-brushed central line that dampens stray reflections. Both hands and indices are filled with white Super-LumiNova that emits a bright green glow.

A color-matched date display sits at 3 o’clock. By printing white calendar numerals on a dark blue date disc, Mido preserves visual balance across the horizontal axis. Protecting the dial is a flat sapphire crystal treated with an anti-reflective coating on both its inner and outer surfaces, which minimizes glare and optically compresses the space between the glass and the hands.

Bezel: The Octagonal Profile

Dual-crown tool watches are overwhelmingly housed in smooth, circular cases. The Multifort 8 Two Crowns departs from this convention: its octagonal bezel genuinely looks good, lending the watch an unmistakable visual identity.

Rather than appearing applied or oversized, the eight-sided bezel flows naturally into the broader case envelope. The horizontal surface of the bezel features a clean vertical satin brush, echoing the grain of the dial below. Each of the eight perimeter facets is finished with a diamond-polished chamfer, creating high-contrast light play across the edges.

Beneath the exterior bezel sits the operational dive mechanism: a bidirectional internal rotating flange marked with a 60-minute elapsed-time scale. The initial 15-minute quadrant displays precise individual minute track hash marks, followed by bold Arabic numerals at five-minute increments. Because the timing bezel is sealed beneath the sapphire crystal, it is entirely immune to accidental knocks, debris, saltwater corrosion, or surface scratching - a remarkable functional advantage over standard external aluminum or ceramic bezels.

Case: Proportions for Smaller Wrists

The execution of the 316L stainless steel case stands out as a genuine engineering achievement. Dual-crown compressor-style cases have a historic reputation for wearing large and bulky. Housing two independent crown stems, secondary internal gearing, and high water-resistant seals usually pushes case diameters beyond 42 mm and thicknesses over 13 mm.

The Multifort 8 Two Crowns avoids these unwieldy dimensions entirely. The case measures 40.0 mm in width, an ultra-compact 38.4 mm in length across the case center, and a remarkably slim 9.5 mm in total thickness. Accounting for the integrated lug structures, the functional lug-to-lug distance spans roughly 44.5 mm.

This compact footprint is a major benefit for collectors with smaller wrists, especially those between 6.0 and 6.75 inches, where long lugs typically cause overhang and instability. The case flanks drop steeply toward the wrist, allowing the watch to sit completely flush against the arm. At just 9.5 mm tall, it glides under tailored dress cuffs with ease, delivering versatility that bulkier dive tools cannot match.

Case integrity is reinforced by dual screw-down crowns located at 2 and 4 o’clock. The 2 o’clock crown controls the internal 60-minute rotating bezel, while the 4 o’clock crown handles manual winding, rapid date advancement, and time adjustment. Both crowns are finely knurled for grip, accented with blue PVD-coated perimeter rings that mirror the dial, and thread firmly into the case body to deliver a dependable 10 bar (100 m / 330 ft) water resistance rating.

Movement: Mido Caliber 72

The slim 9.5 mm profile of the Multifort 8 Two Crowns is enabled directly by Mido’s choice of movement: the Caliber 72.

A substantial portion of timepieces in the Swatch Group stable rely on the Caliber 80 (Powermatic 80), constructed on the ETA 2824-2 architecture. While robust, the ETA 2824 measures 4.6 mm in height, making it difficult to construct an ultra-thin case that incorporates secondary internal-bezel gear mechanics. To solve this, Mido opted for the Caliber 72, built upon the ETA A31.111 base, an advanced evolution of the historically slimmer ETA 2892-A2 platform. Measuring just 3.85 mm thick, the movement provides the required clearance for dual-crown architecture without inflating external proportions.

The Caliber 72 operates at a frequency of 25,200 vibrations per hour (3.5 Hz), striking a balanced equilibrium between a fluid seconds-hand sweep and mechanical longevity. The mainspring stores a generous 72-hour power reserve, providing full weekend autonomy. A watch set down on Friday afternoon will still be running accurately on Monday morning.

Additionally, the Caliber 72 integrates a Nivachron balance spring. Developed in collaboration with the Swiss Centre for Electronics and Microtechnology, this titanium-based alloy significantly suppresses magnetic interference from everyday electronic devices. It is equally resistant to mechanical shock and thermal variations, resulting in consistent isochronism over extended ownership.

The movement is showcased through an exhibition case back, revealing fine perlage, blued screws, and a winding rotor finished with Geneva stripes and an engraved Mido logo.

Strap and Ergonomics

The watch is paired with an integrated navy blue rubber strap (part reference M603019361) that attaches securely to the case. The strap surface carries molded horizontal relief channels that align with the linear pattern on the dial, reinforcing the cohesive Technometry design concept.

The high-grade rubber compound is soft, pliable, and resistant to UV exposure and moisture. It integrates into the 12.0 mm central lug notch before tapering outward to follow the angular case profile. This design locks the strap in place, preventing rotational slip and distributing weight evenly across the wrist.

On rubber, the complete watch weighs around 95 grams. Compared to the 156-gram weight of the steel bracelet variant, this configuration feels remarkably lightweight during long wear periods. The strap fastens with a solid 316L stainless steel pin buckle featuring satin-brushed surfaces and an engraved Mido logo. The underside also features dual quick-release spring bars, allowing tool-free strap removal.

Pros and Cons

Pros

• Ultra-slim profile: At 9.5 mm thick, it is one of the thinnest dual-crown dive tool watches available in the market.
• Smaller-wrist optimization: The compact 44.5 mm functional lug span and angled case eliminate overhang on wrists under 6.5 inches.
• Caliber 72 architecture: The ETA 2892-derived base delivers 72 hours of power reserve and anti-magnetic Nivachron performance.
• Striking octagonal bezel: Clean eight-sided geometry with brushed surfaces and mirror-polished chamfers breaks the round-case mold.

Cons

• Proprietary lug width: The 12 mm central notch configuration restricts aftermarket strap compatibility largely to OEM choices.
• 100m water resistance: While sufficient for recreational diving, it falls short of the Ocean Star’s 200m-600m ratings.
• Fixed tactile feel: Enthusiasts accustomed to clicking external bezels will not experience ratcheting feedback from the smooth internal ring.

Summary and Takeaway

The Mido Multifort 8 Two Crowns (reference M047.507.17.041.00) is a bona fide dive tool watch that deserves a meaningful spotlight. In a category often dominated by bulky, oversized compressor homages, Mido has successfully executed a sports tool watch that prioritizes architectural precision and wearable dimensions.

Its octagonal bezel introduces sharp geometric distinction, while the ETA 2892-derived Caliber 72 movement supplies slimness, weekend-long autonomy, and magnetic resistance via its Nivachron hairspring. With a 44.5 mm effective lug-to-lug span and a case height under 10 mm, it is a rare dual-crown model genuinely suited for smaller wrists.

This timepiece is not the most obvious choice from Mido’s catalog. The vast majority of buyers looking for an aquatic Mido will reflexively gravitate toward the Ocean Star. Yet, choosing the Multifort 8 Two Crowns signals independent taste and mechanical discernment. For the collector seeking a slim, daily-wear sports watch that delivers genuine dive utility alongside striking geometric character, it stands as an exceptionally confident pick.

For more compact dive-watch context, you can also read our guide to the best small dive watches, where Mido’s current small-watch lineup earns a natural place in the conversation.