This replica Daytona 116509-78599 puts a black dial on the Oystersteel platform at 40mm. The 116509 reference in this configuration opts for maximum contrast: dark face, steel case, steel Oyster bracelet. The result is a Cosmograph that reads as a pure tool chronograph without any precious-metal warmth softening its edges. Sapphire crystal, 30m water resistance, and Japanese or Swiss automatic movement options round out the spec sheet.

Case and Movement Specs

• Reference: 116509 (116509-78599)
• Case size: 40mm
• Case material: Oystersteel
• Dial color: black
• Bracelet: Oyster in stainless steel
• Crystal: sapphire
• Water resistance: 30m
• Movement: Japanese or Swiss automatic

Black dials on steel cases define the default Daytona look for many collectors. The combination has appeared in some form since the original references, and the 116509-78599 carries that lineage into the more recent case generation.

Caliber Performance

The chronograph movement inside follows the three-register layout with running seconds at 6 o’clock, 30-minute counter at 3, and 12-hour totalizer at 9. Both movement options deliver automatic winding and hacking seconds for precise time setting. If a Cosmograph in steel with a lighter dial tone suits your preference better, the chocolate 126515LN in Everose gold offers a contrasting approach to the Daytona formula. You can compare all dial and material combinations in our Daytona collection.

How It Compares

Between the silver-dial m116509-0072 and this black-dial 116509-78599, the difference is entirely about dial presence. Silver blends with the steel; black contrasts against it. This replica Daytona 116509-78599 is the steel Cosmograph for buyers who want the dial to stand out sharply from the case and bracelet, keeping the traditional Daytona identity at its most direct.