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Web Shop Omega Speedmaster Day-Date (Triple Calendar)
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Omega Speedmaster Day-Date (Triple Calendar)

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  • Make: Omega

  • Model: Speedmaster Day-Date (Triple Calendar)

  • Reference: 3520.50.00

  • Year: 1996-2000 approx

  • Movement: Automatic

  • Box and papers: No

  • Case: 39mm Steel

  • Dial: Black

  • Bracelet/Strap: Steel bracelet

  • Condition: Very good, pre-owned

  • Warranty/Return period: 3 day return (Lifetime authenticity guarantee)

The Speedmaster Automatic 3520, referred to as the Day-Date by Omega or commonly nicknamed the “Mk40”, is among the more complex and quirky of the Speedmaster’s long and varied history.

This example comes from a line of so-called “Reduced” models, owing to their smaller case size of 39mm but still based on the twisted lug Professional style case.

These are revered by collectors for their obvious and attractive differences to the traditional Speedmasters, and much more wearable case size which is incredibly comfortable, but retaining all the weight and presence of any other Speedmaster.

The dial is of course the major talking point with 8 hands and 3 subdials in the 6, 9 and 12 positions, plus a date track around the circumference complemented with day and month windows in the top 30 minute totaliser subdial.

At the 9 position we have a 24-hour subdial directed by the large arrow hand, plus a small seconds stick hand. Meanwhile at the 6 position we have the hour totaliser subdial.

Overall this is an incredibly detailed and complex watch, that comes across as oddly charming and a treat to sit and stare at. This is a LOT of watch for the modest sum it is priced at; and you’re unlikely to come across another in Guernsey, to boot!

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  • Make: Omega

  • Model: Speedmaster Day-Date (Triple Calendar)

  • Reference: 3520.50.00

  • Year: 1996-2000 approx

  • Movement: Automatic

  • Box and papers: No

  • Case: 39mm Steel

  • Dial: Black

  • Bracelet/Strap: Steel bracelet

  • Condition: Very good, pre-owned

  • Warranty/Return period: 3 day return (Lifetime authenticity guarantee)

The Speedmaster Automatic 3520, referred to as the Day-Date by Omega or commonly nicknamed the “Mk40”, is among the more complex and quirky of the Speedmaster’s long and varied history.

This example comes from a line of so-called “Reduced” models, owing to their smaller case size of 39mm but still based on the twisted lug Professional style case.

These are revered by collectors for their obvious and attractive differences to the traditional Speedmasters, and much more wearable case size which is incredibly comfortable, but retaining all the weight and presence of any other Speedmaster.

The dial is of course the major talking point with 8 hands and 3 subdials in the 6, 9 and 12 positions, plus a date track around the circumference complemented with day and month windows in the top 30 minute totaliser subdial.

At the 9 position we have a 24-hour subdial directed by the large arrow hand, plus a small seconds stick hand. Meanwhile at the 6 position we have the hour totaliser subdial.

Overall this is an incredibly detailed and complex watch, that comes across as oddly charming and a treat to sit and stare at. This is a LOT of watch for the modest sum it is priced at; and you’re unlikely to come across another in Guernsey, to boot!

  • Make: Omega

  • Model: Speedmaster Day-Date (Triple Calendar)

  • Reference: 3520.50.00

  • Year: 1996-2000 approx

  • Movement: Automatic

  • Box and papers: No

  • Case: 39mm Steel

  • Dial: Black

  • Bracelet/Strap: Steel bracelet

  • Condition: Very good, pre-owned

  • Warranty/Return period: 3 day return (Lifetime authenticity guarantee)

The Speedmaster Automatic 3520, referred to as the Day-Date by Omega or commonly nicknamed the “Mk40”, is among the more complex and quirky of the Speedmaster’s long and varied history.

This example comes from a line of so-called “Reduced” models, owing to their smaller case size of 39mm but still based on the twisted lug Professional style case.

These are revered by collectors for their obvious and attractive differences to the traditional Speedmasters, and much more wearable case size which is incredibly comfortable, but retaining all the weight and presence of any other Speedmaster.

The dial is of course the major talking point with 8 hands and 3 subdials in the 6, 9 and 12 positions, plus a date track around the circumference complemented with day and month windows in the top 30 minute totaliser subdial.

At the 9 position we have a 24-hour subdial directed by the large arrow hand, plus a small seconds stick hand. Meanwhile at the 6 position we have the hour totaliser subdial.

Overall this is an incredibly detailed and complex watch, that comes across as oddly charming and a treat to sit and stare at. This is a LOT of watch for the modest sum it is priced at; and you’re unlikely to come across another in Guernsey, to boot!

Why Choose Us?

Exclusive Selection: Our collection features rare and vintage Rolex, Cartier, and Omega watches. All watches are carefully curated by James, an experienced and passionate collector.

Fair Access: New watches drop every Friday evening online at 6pm, giving everyone an equal chance to acquire hard-to-find pieces.

Personal Touch: Visit us in-store at Martin & Martin, 30 High Street, St Peter Port, Guernsey. Enjoy a relaxed retail experience or book a private appointment with James on Saturdays.

Hassle-Free Returns: Enjoy a three-day return policy—if you're not satisfied, simply return your watch for a full refund.

Authenticity Guaranteed: Every watch comes with a 6-month warranty (if no manufacturer guarantee exists) and is guaranteed authentic, or your money back. We verify all of our watches with The Watch Register to ensure they haven’t been reported as lost or stolen, each watch comes with an official certificate.

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