Speedmaster MK40 Triple Date 39mm Grey Dial | Ref. 3520.53.00 | Mint Condition (Box & Manual)

The Story

The Omega Speedmaster MK40 (Reference 3520.53.00) stands as one of the most distinctive and culturally significant executions in Speedmaster history. Originally launched in the late 1990s within the Speedmaster Day-Date lineup, this reference broke conventional monochromatic tool-watch norms with an expressive palette of yellow, blue, and red against a slate-grey dial. It is famously celebrated as the foundational watch gifted to Hodinkee founder Ben Clymer by his grandfather, which directly catalyzed the creation of modern watch media and later inspired the 2018 Omega Speedmaster Hodinkee 10th Anniversary Limited Edition. Now discontinued, the original MK40 has become an essential neo-vintage grail for discerning collectors.

The Craft: 39mm Ergonomics & Automatic Calibre 1151 Engine

The 39mm stainless steel case features Omega's iconic twisted lyre lugs, combining satin-brushed flanks with mirror-polished bevels and an aluminum tachymeter bezel calibrated to 500 units per hour.

The slate-grey dial is a masterclass in high-density mechanical information:

• Outer Track & Central Hand: Yellow airplane-tipped pointer hand tracking the 1–31 calendar scale.
• 12 o’clock Register: 30-minute chronograph counter integrating day of the week and month aperture windows.
• 6 o’clock Register: 12-hour chronograph counter with vibrant red hands.
• 9 o’clock Register: Continuous running seconds subdial featuring a divided blue (day) and black (night) 24-hour second time-zone indicator.

Beneath the solid screw-down caseback—bearing the iconic engraved Speedmaster Seahorse medallion—beats the Automatic Omega Calibre 1151. Built on the legendary, bulletproof Valjoux 7751 architecture, this 25-jewel movement operates at 28,800 vph with an approximate 44-hour power reserve, offering integrated cam-actuated chronograph mechanics alongside a full calendar suite.

Condition & Collector Presentation Set

This discontinued Speedmaster MK40 is presented in true Mint condition, displaying exceptionally sharp case geometry, flawless tachymeter bezel teeth, pristine sapphire crystal, and an unblemished dial with vibrant colors throughout. The original stainless steel bracelet remains tight and crisp, currently sized to fit approximately a 17 cm (6.75-inch) wrist.

The timepiece arrives with its original Omega presentation box and operating manual (warranty card/papers not included). Fully inspected, timing-calibrated, and verified by our master watchmakers, this neo-vintage collector icon is backed by our 1-year Hrock Luxury mechanical warranty (covering mechanical operation; water damage excluded).