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Le Forban Sécurité Mer Rochelaise: Specs, Fit and Buying Details

The Le Forban Rochelaise pairs a 39 mm steel case and internal bezel with a Miyota 9039 automatic movement. Its water-resistance guidance and conflicting dimensions deserve a close look before buying.
Estimate4–5 min Catalogued SpecialistWatchRanker Team
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The Le Forban Sécurité Mer Rochelaise is a vintage-inspired automatic watch with a 39 mm steel case, internal bidirectional bezel and Miyota 9039 movement. Le Forban states 150 m water resistance and describes the watch as suitable for water sports and diving to 50 m; those are manufacturer claims, not independently tested results. Its published dimensions also conflict, so confirm the fit figures with the brand before comparing it with another watch.

What is the Le Forban Sécurité Mer Rochelaise?

The Rochelaise is Le Forban Sécurité Mer’s vintage-inspired automatic model. The brand says it draws on Super Compressor watches and describes its case as a 1970s-style “turtle” shape, with a curved profile and asymmetrical double crowns. Its name refers to La Rochelle and the city’s maritime history.

Le Forban’s product page sums up the design this way: “Taking its inspiration from Super Compressor watches, the Rochelaise catches the eye with its curved case design and subtle details.” The internal bezel and two-crown arrangement give it a different look from a conventional external dive bezel.

Le Forban says it was founded in 1969, relaunched in 2019 by two enthusiasts, and designs and assembles its current collection in France. These are statements from the brand’s official home page, rather than independently verified company-history claims.

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BERNY Titanium Automatic Watch, 10ATM Waterproof Men's Military Field Watch
  • Sleek & Functional Design: This sophisticated titanium men's watch showcases a distinctive dial layout with dedicated markers for minutes, 12-hour, and 24-hour time displays. Arabic numerals ensure optimal legibility, while the bold red-tipped second hand injects a subtle yet striking accent. The inclusion of a practical date window further elevates its everyday versatility.
  • Lightweight & Durable Titanium Construction: Crafted from premium titanium, the case combines brushed and polished finishes for a refined yet rugged aesthetic. Renowned for its featherlight weight and exceptional resilience, titanium offers superior corrosion resistance. The screw-down case back enhances durability.
  • Clear AR Coated Sapphire Lens & Super Luminous: Fitted with an anti-reflective sapphire crystal, this automatic watch delivers unmatched clarity and scratch resistance. The watch hands and markersare coated with super-luminous material for easy readability even in low-light conditions.
  • Precision Japanese Movement & 10ATM Water-Resistant: Powered by a precise Miyota 8215 automatic movement, this timepiece ensures accurate timekeeping and long-term reliability. With a 10ATM water resistance rating, it’s built to accompany you on outdoor adventures without compromise.
  • Quick-Release Nylon Strap for Comfort: The lightweight nylon strap prioritizes comfort for all-day wear, while the quick-release mechanism allows for effortless strap changes to suit any occasion. Low-maintenance and durable, it’s designed for convenience.

Rochelaise specifications

The figures below are published by Le Forban. One important qualification: the product page gives inconsistent case dimensions in different sections.

Specification Manufacturer-published detail
Case 316L stainless steel; 39 mm diameter
Length and thickness The specifications section lists 46 mm lug-to-lug and 9.65 mm thick excluding the crystal, or 11 mm including it. The features section gives 11.40 mm thickness, while descriptive copy gives 45 mm for the length. Confirm the figures with Le Forban before relying on them for fit.
Bezel Internal, bidirectional stamped-steel bezel; Le Forban says its hour markers are stamped into the metal and varnished
Crystal Double-domed sapphire
Crowns Two asymmetrically positioned crowns; the product page specifies a screw-down crown
Water resistance 150 m stated water resistance; the manufacturer describes use for water sports and diving to 50 m
Movement Miyota 9039 automatic, with hacking (stop-seconds)
Functions and reserve Hours, minutes and seconds; stated 42-hour power reserve
Dial Sunburst, without a date display; Sea Green, Ocean Blue and Sand Grey versions are described
Lug width and strap 20 mm lugs; the product configuration is shown with a silicone strap, and the brand lists compatible NATO rubber, NATO leather and modern steel mesh accessories

How to interpret the water-resistance claim

Le Forban publishes a 150 m water-resistance rating and says the Rochelaise is suitable for water sports and diving to 50 m. Treat the latter as the manufacturer’s stated guidance, not as evidence of independent dive certification or a pressure test. If your intended use depends on a formal certification or a particular operating depth, ask the brand for the documentation that applies to the specific watch.

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  • AUTOMATIC MOVEMENT: Swiss H-10 movement with 80-hour reserve ensures consistent performance. Experience precision that matches both daily tasks and adventures, a testament to Swiss craftsmanship in automatic timekeeping.
  • WATER RESISTANT TO 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
  • BUILT FOR ADVENTURE: Featuring a 42mm stainless steel case, a black dial and leather strap, this watch combines durability and functionality. With Super-LumiNova and sapphire crystal, it’s ready to tackle your outdoor challenges.
  • PREMIUM MATERIALS: Leather strap with pin buckle offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
  • RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.

Movement, bezel and everyday use

Miyota 9039 automatic movement

The Miyota 9039 is an automatic movement with hours, minutes and seconds, hacking seconds, and a manufacturer-stated 42-hour power reserve. There is no date display. Le Forban does not provide a measured accuracy result on the cited product page, so the published specification should not be read as an independent timekeeping assessment.

Internal bidirectional bezel

The bezel sits beneath the crystal rather than outside it, and Le Forban describes it as bidirectional. Its two-crown design is part of the watch’s Super Compressor-inspired appearance. The product information describes the bezel materials and markings but does not establish independent testing of its operation or durability.

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  • DURABLE UTILITY: this watch is water-resistant to 10 bar, and boasts a 39.4mm stainless steel watch case with comfy black nylon strap, ensuring it lives on your wrist as a robust yet stylish sports watch.
  • BLACK DIAL: this men's watch features a striking black dial, luminous dial indicator hands and numerals, and orange-tipped second hand for easy visibility
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Choosing a strap

The stated lug width is 20 mm. Le Forban shows a silicone strap with the product configuration and lists NATO rubber, NATO leather and modern steel mesh accessories. A replacement should match the 20 mm lug width and attach correctly to the watch; confirm the attachment details before buying a third-party 20 mm watch strap.

Case size and fit: confirm the conflicting measurements

The 39 mm diameter is consistent in the manufacturer’s specifications, but the listed length and thickness are not: the page gives 45 mm and 46 mm for lug-to-lug, and three thickness presentations—9.65 mm without the crystal, 11 mm including it, and 11.40 mm elsewhere. Because those differences affect wrist-fit comparisons, do not treat any single length or thickness as definitive without confirmation from Le Forban. The brand’s product page is the source for all specifications above: La Rochelaise.

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IRONWAY Field Watch Men, 41mm Military Analog Wrist Watch (Verdant)
  • FIELD-READY DESIGN: This men's military field watch and work watch pairs a rugged 41mm case with dependable Japanese quartz accuracy — built for hiking, the office, and everyday wear.
  • SAPPHIRE CRYSTAL, SCRATCH-RESISTANT: Anti-reflective sapphire glass protects the analog dial from daily bumps and scratches, so this men's watch stays sharp-looking through years of active, outdoor use.
  • 50M WATER RESISTANT: Rated for rain, hand-washing, and everyday splashes — built for an active, outdoor lifestyle, though not intended for diving.
  • INTERCHANGEABLE NYLON STRAP: The 22mm nylon watch strap is comfortable for everyday wear and easy to change between different occasions.
  • DAY-DATE DISPLAY, READY TO GIFT: Luminous hands and a day-date window make this wrist watch easy to read day or night — a practical, giftable men's watch for birthdays or everyday wear.
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Price, delivery, returns and warranty

When checked in the supplied product information, the Sea Green configuration with a green silicone strap was shown at €740 including French VAT. Price and availability can change, so check the live product page before purchasing.

  • Delivery: The page says delivery is free in France and the European Union, and that in-stock orders take approximately 48 hours on working days. Outside the EU, taxes are not included and may be collected locally by DHL.
  • Returns: The page provides a 14-day period after receipt for exchange or refund, subject to contacting the company and returning the watch unused in its original packaging.
  • Warranty: The stated international warranty lasts two years from shipment and covers manufacturing defects in the movement, hands, case or dial. The page excludes negligence, accidents, misuse and natural wear.

These terms are the manufacturer’s published terms and may change; confirm the current conditions with Le Forban before ordering.

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Best Value
BERNY Mens Full Titanium Automatic Watch,10ATM Waterproof Military Field
  • Sleek & Functional Design: This sophisticated titanium men's watch showcases a distinctive dial layout with dedicated markers for minutes, 12-hour, and 24-hour time displays. Arabic numerals ensure optimal legibility, while the bold red-tipped second hand injects a subtle yet striking accent. The inclusion of a practical date window further elevates its everyday versatility.
  • Lightweight & Durable Titanium Construction: Expertly crafted from titanium, this BERNY timepiece delivers a sleek, modern aesthetic in understated gunmetal tones. Renowned for its featherlight comfort and military-grade resilience, titanium provides unparalleled resistance to corrosion and daily wear. The reinforced screw-down case back ensures enhanced protection for long-term reliability.
  • Clear AR Coated Sapphire Lens & Super Luminous: Fitted with an anti-reflective sapphire crystal, this automatic watch delivers unmatched clarity and scratch resistance. The watch hands and markers are coated with super-luminous material for easy readability even in low-light conditions.
  • Precision Japanese Movement & 10ATM Water-Resistant: Powered by a precise Miyota 8215 automatic movement, this timepiece ensures accurate timekeeping and long-term reliability. With a 10ATM water resistance rating, it’s built to accompany you on outdoor adventures without compromise.
  • Dual Safety Clasp Design: The secure double-lock clasp ensures your watch stays firmly in place, reducing the risk of accidental slips while delivering both comfort and style. If you have any inquiries about our products, our responsive and expert support team is always ready to assist with tailored solutions.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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