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Epic SF24 Racing Grade 5 Titanium Black

a clock on the side of a watch


With its groundbreaking city-time display, the Epic SF24 Racing enters a bold new dimension entirely undiscovered by traditional watches. Named after its Split-Flap 24-city, vertical second time zone display, the Epic SF24 Racing is a jet-set world-traveler's watch that is unique in its complexity and utility. Remarkably challenging to engineer and manufacture, yet easy and intuitive to use: the functionality and design of the Epic SF24 render it prepared to take on the world.
Epic SF24 Racing Split Flap World Time Display

Split Flap World Time Display

The patented World Time Display of the Epic SF24 Racing comprises a total of 163 components, allowing it to work at a press of a button, on demand, with exceptional feel and reliability. Inspired by traditional split-flap timetable displays seen on airports and in evergreen cinema classics, every press of the button integrated into the left hand side of the Split-Flap extension turns it to the next city name - and, along with it, also advances the Arabic hour display by one.

Designed to boldly stand out among traditional 2nd time zone indications so omnipresent in modern watchmaking, the Split-Flap display is a spectacular engineering achievement unto its own not simply for its complexity, but for its singular ability to bring a smile of appreciation to even the most tired of world travelers.

Epic SF24 Racing Epic SF24 Caliber

Epic SF24 Caliber

The Exclusive JCAA02 Caliber powers the Epic SF24 Racing and all its time indications. The time on the main dial is set via the crown located at the 4 o'clock position of the case. Once the hours and minutes have been set, the World Time Display is to be adjusted via the pusher dedicated to this purpose. With this done, the main dial and the second time zone display work together through a fully mechanical connection: as the main dial advances to the following hour, so does the split-flap hour display, making for a highly engineered audible and visible feat - not just when it is adjusted, but also once every hour, throughout its operation.

Comprising 473 components, including 163 for the Split-Flap display, the JCAA02 caliber's 48-hour power reserve is replenished by a self-winding rotor mechanism. Finished with high-end Cotes de Geneve and circular perlage graining, it tastefully combines the values of traditional horology with the achievements only possible in cutting-edge, ultra-modern watchmaking.

a clock on the side of a watch

Epic SF24 Grade 5 Titanium Black Video

Epic SF24 Racing Case & Crystal

Case & Crystal

The case of Epic SF24 Racing measures 45 millimeters in diameter and 13.65 millimeters thick at its center, and 16.70 millimeters between the top of its World Time Display and the lowest point of its case. Its case is available in Grade 5 Titanium or Black Coated Grade 5 Titanium, with the case sides, pusher and crown in honeycomb pattern rubber in blue, red, green or black. An anti-reflective sapphire crystal covers the main dial, and a specially curved sapphire crystal safeguards the Split-Flap display, allowing for unhindered viewing of its operation and the spectacular mechanisms inside. The case-back also features a sapphire crystal pane, here with a Jacob & Co metallized decor, proudly stating the name of the Epic SF24's creator.

Epic SF24 Racing Dial & Hands

Dial & Hands

The Epic SF24 comes with a high-contrast, solid anthracite opalin or solid black dial with color-matched Roman numerals to indicate the main time zone. Above it extends the Split-Flap display for the World Time's city name and its respective hour indication, also in colors that match the subsidiary palette of the main dial and case components. The skeletonized central hands and the hour indices have luminescent coating for increased legibility under all circumstances.


Unique world time movement and display, exclusive to Jacob & Co.

Inspired by old-time split-flap boards in airports and train stations

24 time zones available at the push of a button

Time zones are customizable

Extremely easy to set, use, and read. No need for reading glasses here - the cities are bold and large enough to read easily

Know the time anywhere in the world at a glance (or at the push of a button)

Advance the world time display by the push button on the side of the horizontal display

Advance the local time by one hour at a time using the crown

Special case design, integrating the split-flap world time display and the local time display

A sapphire crystal-covered window exposes the intricacies of the patented split-flap mechanism

a close up of a watch

Technical Specifications

Item Number: ES101.21.NS.YK.A

Movement: Manufacture Self-winding Jacob&Co. Movement Caliber JCAA02; Patented; Dimensions: 35.50mm x 42.10mm x 12.20mm, 15 3 ⁄4 ́ ́ ́x 18 2 ⁄3 ́ ́ ́; Components: 473 (163 for the 24-Hour World Time Indication Flap System); Power Reserve: 48-hours; Frequency: 28'800 vib/h (4 Hz); Jewels: 34 Jewels; System: Balance with Screw; Ceramic Ball Bearing System; Anti-shock; Finishing: Hand Finishes: Côtes de Genève Engraving; Circular Graining.

Functions: Hours, Minutes and Seconds, Instantaneous 24-Hour Digital & Vertical Time Indication.

Case: 45mm; Thickness: 13.65 at the Center, 16.70mm at the World Time Display; Material: Black DLC Grade 5 Titanium; Case sides, Pusher and Crown: Inserts of Black Honeycomb Pattern Rubber; Finishing: High-end Finishes Côtes de Genève and Circular Graining; Polished Screw; Crystal: 1 Domed & 1 Sapphire with Anti-reflective Treatment on Both Sides; Case Back: See Through Back with Sapphire Crystal and Metallized Jacob & Co. Decoration; Water resistance: 30m.

Dial & Hands: Dial: Digital and Vertical GMT Display; Dark Dial; Applied Roman Numerals coated with Black DLC; Engraved Center Dial; 2nd Hand at 10 O'Clock; Hands: Skeleton Central Hands; Accentuated with Black DLC Coating.

Strap & Clasp: Alligator; Black DLC Grade 5 Titanium. Limited Edition: 101 Pieces; Individually Numbered Pieces.

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Flagship Boutique
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48 East 57 Street
New York, NY 10022
+1 (212) 719-5887
Jacob & Co

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