The authenticity of the watch has been checked and certified by Sebastian, who is one of Sweden's leading watch experts.

• Ideal for coastal weekends and yacht club gatherings • Elevates smart‑casual dinners and city breaks with its green wave dial • Versatile 36mm stainless‑steel profile for day‑to‑evening wear • Distinctive limited edition for collectors’ meets

Q: Which movement does this reference use and how accurate is it?
A: The 36 mm Jacques Mayol (ref. 2553.41.00) is powered by the Omega calibre 1120, a self‑winding chronometer‑certified movement with around 44 hours of power reserve and a quick‑set date. As a COSC chronometer, it was rated at -4/+6 seconds per day when new; real‑world performance on a vintage piece depends on service history.

Q: Will the bracelet fit my wrist?
A: It is currently sized to fit up to approximately 17 cm and comes with 3 extra links for additional length. Bracelet fit varies by link style and wrist shape; further links can usually be sourced by a trusted watchmaker if needed.

Q: Is 36 mm a men’s or a women’s size?
A: The 36 mm Seamaster 300M wears as a versatile mid‑size that many consider unisex. With its compact lug‑to‑lug and slim profile, it suits a wide range of wrists and wears smaller than the modern 42 mm models.

Q: What makes the Jacques Mayol edition special?
A: It was created as a tribute to the pioneering free diver Jacques Mayol and is instantly recognisable by its deep green wave dial and matching bezel. Each watch is individually numbered out of 3,000 and most examples have “Jacques Mayol 1996” engraved on the case flank, marking the launch year of the edition.

Q: Which movement does this reference use and how accurate is it?
A: The 36 mm Jacques Mayol (ref. 2553.41.00) is powered by the Omega calibre 1120, a self‑winding chronometer‑certified movement with around 44 hours of power reserve and a quick‑set date. As a COSC chronometer, it was rated at -4/+6 seconds per day when new; real‑world performance on a vintage piece depends on service history.

Q: Is it actually 300 m water‑resistant and can I swim with it?
A: The Seamaster 300M line was originally rated to 300 metres and features a screw‑down crown and a unidirectional bezel, with many examples also featuring a helium escape valve. However, on any vintage watch, water resistance cannot be guaranteed without fresh gaskets and a recent pressure test. We recommend a professional test before swimming and avoiding hot tubs/saunas altogether.

Q: Tritium or Super‑LumiNova—how can I tell on this model?
A: Early pieces from 1996 typically used tritium, which often develops a warm patina over time. By the late 1990s, Omega had transitioned to Super‑LumiNova on many dials. A quick clue is the dial text: “T SWISS MADE T” indicates tritium, while “SWISS MADE” alone usually indicates Super‑LumiNova. Please check our photos for the exact dial print on this watch.

Q: What is included with this watch?
A: This example comes as a full set. Everything provided is listed under the product information section for this item. If a specific item (such as a spare link or dust bag) is not listed there, it is not included.

Q: Will the bracelet fit my wrist?
A: It is currently sized to fit up to approximately 17 cm and comes with 3 extra links for additional length. Bracelet fit varies by link style and wrist shape; further links can usually be sourced by a trusted watchmaker if needed.

Q: Is 36 mm a men’s or a women’s size?
A: The 36 mm Seamaster 300M wears as a versatile mid‑size that many consider unisex. With its compact lug‑to‑lug and slim profile, it suits a wide range of wrists and wears smaller than the modern 42 mm models.

Q: How do I set the time and date safely?
A: Unscrew the crown counter‑clockwise. Pull to the first click to quick‑set the date (avoid changing the date between roughly 8 p.m. and 3 a.m.). Pull to the second click to set the time, then push the crown back in and screw it down to secure water resistance.

Q: Why do some listings say 1996 while others say 1999?
A: The Jacques Mayol edition debuted in 1996, but individual watches were produced and delivered through the late 1990s. Dealers sometimes describe a piece by its specific production or sale year. The case‑side script references the launch year, while the exact production/delivery date can be confirmed with an Omega Extract from the Archives using the serial number.

Q: What makes the Jacques Mayol edition special?
A: It was created as a tribute to the pioneering free diver Jacques Mayol and is instantly recognisable by its deep green wave dial and matching bezel. Each watch is individually numbered out of 3,000 and most examples have “Jacques Mayol 1996” engraved on the case flank, marking the launch year of the edition.

Q: Which movement does this reference use and how accurate is it?
A: The 36 mm Jacques Mayol (ref. 2553.41.00) is powered by the Omega calibre 1120, a self‑winding chronometer‑certified movement with around 44 hours of power reserve and a quick‑set date. As a COSC chronometer, it was rated at -4/+6 seconds per day when new; real‑world performance on a vintage piece depends on service history.

Q: Is it actually 300 m water‑resistant and can I swim with it?
A: The Seamaster 300M line was originally rated to 300 metres and features a screw‑down crown and a unidirectional bezel, with many examples also featuring a helium escape valve. However, on any vintage watch, water resistance cannot be guaranteed without fresh gaskets and a recent pressure test. We recommend a professional test before swimming and avoiding hot tubs/saunas altogether.

Q: Tritium or Super‑LumiNova—how can I tell on this model?
A: Early pieces from 1996 typically used tritium, which often develops a warm patina over time. By the late 1990s, Omega had transitioned to Super‑LumiNova on many dials. A quick clue is the dial text: “T SWISS MADE T” indicates tritium, while “SWISS MADE” alone usually indicates Super‑LumiNova. Please check our photos for the exact dial print on this watch.

Q: What is included with this watch?
A: This example comes as a full set. Everything provided is listed under the product information section for this item. If a specific item (such as a spare link or dust bag) is not listed there, it is not included.

Q: Will the bracelet fit my wrist?
A: It is currently sized to fit up to approximately 17 cm and comes with 3 extra links for additional length. Bracelet fit varies by link style and wrist shape; further links can usually be sourced by a trusted watchmaker if needed.

Q: Is 36 mm a men’s or a women’s size?
A: The 36 mm Seamaster 300M wears as a versatile mid‑size that many consider unisex. With its compact lug‑to‑lug and slim profile, it suits a wide range of wrists and wears smaller than the modern 42 mm models.

Q: How do I set the time and date safely?
A: Unscrew the crown counter‑clockwise. Pull to the first click to quick‑set the date (avoid changing the date between roughly 8 p.m. and 3 a.m.). Pull to the second click to set the time, then push the crown back in and screw it down to secure water resistance.

Q: Why do some listings say 1996 while others say 1999?
A: The Jacques Mayol edition debuted in 1996, but individual watches were produced and delivered through the late 1990s. Dealers sometimes describe a piece by its specific production or sale year. The case‑side script references the launch year, while the exact production/delivery date can be confirmed with an Omega Extract from the Archives using the serial number.