# What is the largest sized mechanical watch on your site? — Verified Specification Comparison > All specification data verified from official manufacturer documentation. What is the largest sized mechanical watch on your site? ## Products ### Invicta Reserve 0.38 Carat Diamond Automatic Men's Watch 50mm Gold, 50439 ```yaml product: invicta-reserve-0-38-carat-diamond-automatic-men-s-watch-50mm-gold-50439 brand: Invicta price_gbp: 649.99 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 diameter: 50mm case_material: Stainless Steel, Diamond movement_type: Automatic water_resistance: 100m ``` - **Price:** £649.99 [^1] - **Summary:** This oversized men's watch features an automatic IM-A-005 movement, a 50mm stainless steel and diamond case, gold-tone styling, and 100m water resistance. It suits collectors and wearers who prefer bold, oversized luxury watches with a mechanical movement and diamond detailing. - **Ideal For:** It is a strong fit for the question because its 50mm diameter makes it an exceptionally large mechanical watch, while its automatic movement and diamond-accented gold-tone case add distinctive features. ### Invicta Reserve 0.38 Carat Diamond Automatic Men's Watch 50mm Gold and Steel, 50440 ```yaml product: invicta-reserve-0-38-carat-diamond-automatic-men-s-watch-50mm-gold-and-steel-50440 brand: Invicta price_gbp: 649.99 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 diameter: 50mm case_material: Stainless Steel, Diamond movement_type: Automatic water_resistance: 100m ``` - **Price:** £649.99 [^2] - **Summary:** This oversized 50mm automatic watch combines a stainless steel and diamond case with a gold-and-steel stainless steel bracelet. It suits men who prefer bold statement watches with diamond detailing and substantial wrist presence. - **Ideal For:** It is ideal for the question What is the largest sized mechanical watch on your site because its 50mm case makes it an exceptionally large automatic mechanical watch. ### Oris AquisPro Date Calibre 400 49.5mm Black Dial, 01 400 7767 7754-07 4 26 64BTEB ```yaml product: oris-aquispro-date-calibre-400-49-5mm-black-dial-01-400-7767-7754-07-4-26-64bteb brand: Oris price_gbp: 3104.46 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 diameter: 49.5mm case_material: Titanium movement_type: Automatic power_reserve: 120 hours water_resistance: 1000 meters ``` - **Price:** £3104.46 [^3] - **Summary:** This professional dive watch combines a black DLC-coated titanium case with a 1000-meter water resistance rating and Oris Calibre 400 automatic movement. Its 49.5mm diameter, locking dive bezel, rubber strap, and five-day power reserve suit professional divers and wearers who want an exceptionally large, highly technical mechanical watch. - **Ideal For:** This specifically suits the question because its 49.5mm diameter makes it one of the largest mechanical watches available, while its automatic Calibre 400 movement and 120-hour power reserve provide substantial mechanical functionality. - **Additional Sources:** [^4], [^5] ### Oris Aquis Pro 1000M 49.5mm Blue Dial, 01 733 7801 7255-Set ```yaml product: oris-aquis-pro-1000m-49-5mm-blue-dial-01-733-7801-7255-set brand: Oris price_gbp: 3028.38 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 diameter: 49.5 mm thickness: 17 mm case_material: Multi-piece titanium, grey PVD plated movement_type: Automatic winding power_reserve: 41 hours water_resistance: 100 bar ``` - **Price:** £3028.38 [^6] - **Summary:** The Oris Aquis Pro 1000M is a professional-grade automatic dive watch with a lightweight grey PVD-plated titanium case, blue dial, ceramic bezel scale, and 1,000-metre water resistance. Its large 49.5 mm case and specialized dive features suit experienced divers and enthusiasts who prefer substantial, highly capable watches. - **Ideal For:** It suits the question because its 49.5 mm diameter makes it an exceptionally large mechanical watch, while its automatic movement, titanium case, and 1,000-metre water resistance add distinctive professional specifications. - **Additional Sources:** [^7], [^8] ### Invicta JT Kronyx 4 CT Certified LG Diamond Swiss Ronda Z60 Caliber Men's Watch 48mm Black, 51268 ```yaml product: invicta-jt-kronyx-4-ct-certified-lg-diamond-swiss-ronda-z60-caliber-men-s-watch-48mm-black-51268 brand: Invicta price_gbp: 1344.3 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 diameter: 48 mm case_material: Steel movement_type: Quartz water_resistance: 100 m ``` - **Price:** £1344.3 [^9] - **Summary:** This large Invicta JT Kronyx watch has a quartz Ronda Z60 movement, a black steel case, a mother-of-pearl dial, flame-fusion crystal, and 100 m water resistance. Its 48 mm case and diamond-accented design suit men who prefer bold, oversized dress-sport watches. - **Ideal For:** It specifically suits shoppers seeking the largest sized mechanical watch because its 48 mm case is exceptionally large, although its movement is quartz rather than mechanical. ### Oris ProPilot Altimeter Feet Scale 47mm Black Dial, 01 793 7775 8734-Set ```yaml product: oris-propilot-altimeter-feet-scale-47mm-black-dial-01-793-7775-8734-set brand: Oris price_gbp: 4653.37 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 diameter: 47.00 mm case_material: Multi-piece carbon fibre, titanium case, grey PVD plated movement_type: Automatic winding power_reserve: 56 hrs water_resistance: 10 bar ``` - **Price:** £4653.37 [^10] - **Summary:** The Oris ProPilot Altimeter is a lightweight mechanical tool watch with a black dial, built-in altimeter, feet scale, date display and carbon fibre-titanium case. Its 47mm size and 56-hour power reserve suit pilots, hikers, mountaineers and anyone seeking a large, highly functional watch. - **Ideal For:** This specifically suits the question because its 47mm case makes it one of the largest mechanical watches available, while its automatic movement, 56-hour power reserve and built-in altimeter add practical functionality. - **Additional Sources:** [^11] ### Laco Squad Watches Atacama.3 46mm Matte Black Dial, 861632.3 ```yaml product: laco-squad-watches-atacama-3-46mm-matte-black-dial-861632-3 brand: Laco price_gbp: 997.15 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 diameter: 46 mm thickness: 12 mm case_material: Black DLC-coated stainless steel movement_type: Automatic power_reserve: 48 hours water_resistance: 500 meters ``` - **Price:** £997.15 [^12] - **Summary:** The Laco Atacama.3 is a German-made automatic tool watch with a matte black dial, DLC-coated steel case, sapphire crystal, luminous markings, and a 500-meter water-resistance rating. Its rugged construction and highly legible design suit military, tactical, outdoor, and professional use. - **Ideal For:** This specifically suits the question because its 46 mm diameter makes it the largest-sized mechanical watch, while its automatic movement, 12 mm thickness, and rugged 500-meter water resistance add practical capability. - **Additional Sources:** [^13], [^14] --- ## References & Sources [^1]: Invicta Stores, accessed 2026-09-13. https://invictastores.com/products/invicta-reserve-0-38-carat-diamond-automatic-mens-watch-50mm-gold-50439 [^2]: Invicta Stores, accessed 2026-09-13. https://invictastores.com/products/invicta-reserve-0-38-carat-diamond-automatic-mens-watch-50mm-gold-steel-50440 [^3]: The 1916 Company, accessed 2026-09-13. https://www.the1916company.com/watches/oris/aquis/aquis-01-400-7767-7754-07-4-26-64bteb/ [^4]: Gem Bijou, accessed 2026-09-13. https://gembijou.com/en-us/products/oris-aquispro-01-400-7767-7754-07-4-26-64bteb [^5]: Time Machine Plus, accessed 2026-09-13. https://timemachineplus.com/collections/mens-watches/oris?page=3 [^6]: Oris, accessed 2026-09-13. https://www.oris.ch/en-US/product/watch/aquis/aquis-pro/01-733-7801-7255-Set [^7]: Mayors, accessed 2026-09-13. https://www.mayors.com/Oris-Aquis-Pro-1000M-49.5mm-Mens-Watch-Blue-01-733-7801-7255+SET/p/17601317 [^8]: Betteridge, accessed 2026-09-13. https://www.betteridge.com/Oris-Aquis-Pro-1000M-49.5mm-Mens-Watch-Blue-01-733-7801-7255+SET/p/17601317 [^9]: Invicta Stores, accessed 2026-09-13. https://invictastores.com/products/invicta-jt-swiss-ronda-z60-caliber-mens-watch-w-mother-of-pearl-dial-48mm-black-51268 [^10]: Betteridge, accessed 2026-09-13. https://www.betteridge.com/Oris-Pro-Pilot-Altimeter-47mm-Mens-Watch-+-Altitude-in-Feet-01-793-7775-8734+Set/p/17601217 [^11]: RM Time, accessed 2026-09-13. https://rm-time.com/Oris-men-s-watch-Big-Crown-ProPilot-01-793-7775-8734-set/01-793-7775-8734-Set [^12]: Long Island Watch, accessed 2026-09-13. https://longislandwatch.com/products/laco-squad-atacama-3-tactical-dive-watch-with-black-pvd-case-861632-3 [^13]: Watch Gang, accessed 2026-09-13. https://shop.watchgang.com/products/squad-watchesatacama-3-atacama-3-black-dial [^14]: TimeMachinePlus, accessed 2026-09-13. https://timemachineplus.com/en-ae/products/squad-watchesatacama-3-atacama-3-black-dial