Featured image: Giordano Tonelli, CC BY-SA 4.0, via Wikimedia Commons
Cooper (Matthew McConaughey) wears the Hamilton Khaki Pilot Day Date Auto (ref. H64615135) for most of Interstellar. The watch that became famous — the one the film hangs its entire emotional resolution on — is a different piece entirely: a custom-built Hamilton field watch that Cooper leaves with his daughter Murph, and that Hamilton eventually released commercially in 2019 as the Khaki Field Murph (ref. H70605731).
Quick answer Cooper wears the Hamilton Khaki Pilot Day Date Auto (H64615135) throughout Interstellar (2014). Before he leaves Earth, he gives his daughter Murph a separate custom Hamilton field watch, which transmits the film’s climactic Morse code message. Hamilton released that prop watch commercially in 2019 as the Khaki Field Murph; it retails today at roughly $895 to $1,095 depending on size and seller.
Murph’s Watch: The Hamilton Khaki Field Murph
The Murph watch was built from scratch for the production. Prop master Ritchie Kremer brought the brief to Hamilton: a tool watch with an American character, legible under stress, capable of telling a story without a word of dialogue. Hamilton had roughly three weeks to design and manufacture the piece. The company built approximately ten examples and asked for every one of them back when filming wrapped.
In the film’s climax, Cooper finds himself inside a tesseract — a five-dimensional structure beyond the black hole Gargantua — where he can interact with gravity across time. He uses the seconds hand of Murph’s watch to tap out Morse code encoding the quantum data she needs to solve the gravitational equation that saves Earth’s population. Prop master Kremer’s team fitted a servo motor inside the prop movement to make the seconds hand move independently; no CGI was used for the sequence. When Murph decodes the message, she shouts “Eureka.”
The commercial version, released in February 2019, preserves the watch’s distinctive silhouette: stepped bezel, oversized crown, cathedral hands, and a dateless black dial with aged Arabic numerals that reads as both vintage military and contemporary minimalist. The seconds hand carries the word “EUREKA” inscribed in Morse code within the lacquer — a nod to the film rather than a functional feature.
| Spec | Hamilton Khaki Field Murph 42mm (H70605731) |
|---|---|
| Case diameter | 42 mm |
| Case material | Stainless steel |
| Movement | Hamilton caliber H-10, automatic |
| Power reserve | 80 hours |
| Crystal | Sapphire |
| Water resistance | 100 m (330 ft) |
| Dial | Black, Arabic numerals, cathedral hands, no date |
| Notable detail | “EUREKA” in Morse code on seconds hand lacquer |
| Approx. retail price | $1,095 (MSRP); from about $895 discounted |
Where to buy
Compare the same watch on both sites: eBay for pre-owned and vintage pieces, Amazon for new stock.
Prices and availability change; check the listing before you buy.
Cooper’s Own Watch: The Hamilton Khaki Pilot Day Date
While Murph’s watch commands the film’s emotional climax, the watch on Cooper’s wrist for most of Interstellar is a standard-catalog Hamilton. The Khaki Pilot Day Date Auto (H64615135) is a 42mm pilot-style watch with a high-contrast black dial, a day-of-week display at 12 o’clock, and a date aperture at 6. It suits the character: a former NASA test pilot living as a farmer, practical to his core, the kind of man who would own a reliable tool watch rather than a dress piece.
The H64615135 remains in Hamilton’s current lineup. Unlike the Murph, it has attracted less collector attention, but it is the watch McConaughey actually wears in most scenes. Authorized-dealer pricing typically starts around $1,125, with discounts available from authorized online retailers.
| Spec | Hamilton Khaki Pilot Day Date Auto (H64615135) |
|---|---|
| Case diameter | 42 mm |
| Case material | Stainless steel with bracelet |
| Movement | Swiss automatic |
| Crystal | Sapphire |
| Water resistance | 100 m (330 ft) |
| Dial | Black, day-of-week at 12, date at 6 |
| Approx. retail price | $1,125 (MSRP) |
From Prop to Production: The Full Murph Range
Hamilton’s decision to release the Murph commercially in 2019 was a direct response to sustained demand. In the years between the film’s release and the commercial launch, Hamilton held occasional contests awarding a handful of film-version pieces. The production run opened with the 42mm H70605731, closely matching the prop’s dimensions and design.
Hamilton has since expanded the Murph family. A 38mm version followed, offering the same design at a size that sits more proportionately on medium wrists. In September 2024 a white-dial 38mm variant was added, with beige lume and black-outlined markers for improved legibility. Current models:
| Model | Reference | Approx. MSRP |
|---|---|---|
| Khaki Field Murph Auto 42mm, leather | H70605731 | $1,095 |
| Khaki Field Murph Auto 38mm, leather | H70405730 | $995 |
| Khaki Field Murph Auto 38mm, bracelet | H70405130 | $1,045 |
| Khaki Field Murph Auto 38mm, white dial (2024) | — | ~$995 |
Hamilton and Film: A Long Partnership
Hamilton’s role in Interstellar is part of a much longer relationship with Hollywood. The brand describes itself as “The Movie Brand” and has appeared in more than 500 productions, among them Men in Black, 2001: A Space Odyssey, and The Martian. Hamilton’s founding in Lancaster, Pennsylvania in 1892 and its history supplying reliable field watches to the US military gave the brand a design vocabulary that reads clearly on screen: watches with a purpose, worn by people under pressure.
The Interstellar placement works as well as it does because the watch is a plot device, not background dressing. Christopher Nolan’s production wanted something that felt earned — the kind of watch a practical man keeps rather than an aspirational trophy. Hamilton’s American workwear roots fit that brief in a way that a luxury Swiss alternative would not have.
For comparison, most other great movie watches of the past generation communicate glamour: the Omega Seamaster in the Bond franchise, for instance, chosen for a very different set of storytelling reasons. The Omega in Skyfall reads as a statement of sophistication; the Murph in Interstellar reads as a keepsake. Both approaches work, but they reveal how much a watch choice says about the character wearing it. For another example of a watch defined by where it went rather than what it costs, the story of the Speedmaster on the Moon remains the benchmark.
Affordable Alternatives to the Hamilton Murph
The Murph sits at just under $1,000 at MSRP — reasonable for a Swiss automatic with film provenance and a Swatch Group supply chain. For buyers who want the field-watch character without the Hamilton premium, the most sensible options are close to home.
Within Hamilton’s own lineup, the Khaki Field Auto (H70515137) shares the Murph’s H-10 movement, proportions, and military character while adding a date window. It retails for around $845 — roughly $250 less than the 42mm Murph. The Morse code detail and the film connection are absent, but the watch quality is identical.
The Hamilton Khaki Field Mechanical (H69439931) is a hand-wound alternative at roughly $550–650, in a 38mm case that appeals to buyers who prefer vintage proportions. The H-50 manually wound movement has an 80-hour power reserve and gives the same no-nonsense field-watch character without the automatic complication.
Outside the Hamilton family, the Seiko 5 Sports SRPD55 (around $200–250) is the most common recommendation for buyers who want an automatic field watch at an entry-level price. The case and bracelet finishing are a clear step below Hamilton’s, but the 4R36 movement is durable and easy to service. The Christopher Ward C65 Trident (around $600–750) sits between Seiko and Hamilton in price and offers clean, modern dial design with comparable build quality.
FAQ
What watch does Cooper wear in Interstellar?
Cooper (Matthew McConaughey) wears the Hamilton Khaki Pilot Day Date Auto (H64615135) throughout the film — a 42mm pilot watch with a day and date display, distinct from the custom field watch he gives Murph before departing Earth.
What is the Interstellar Hamilton watch?
The watch most people mean by the “Interstellar Hamilton” is the Khaki Field Murph (H70605731), a custom piece Hamilton built for the film’s production that was later released commercially in 2019. Its seconds hand carries “EUREKA” in Morse code as a reference to the film’s climactic scene.
Is the Hamilton Murph watch from Interstellar still available to buy?
Yes. Hamilton currently sells the Murph in two case sizes — 42mm (H70605731, about $1,095 MSRP) and 38mm (H70405730, about $995) — alongside a bracelet option and a white-dial 38mm variant added in September 2024.
What does the second hand on the Hamilton Murph mean?
The word “EUREKA” is inscribed in Morse code in the lacquer on the seconds hand, referencing the scene in which Murph decodes the gravitational data Cooper transmits through the watch. In the prop version a servo motor moved the hand independently; in the retail watch it is a standard automatic seconds hand.
How many Murph watches did Hamilton make for Interstellar?
Hamilton produced approximately ten Murph watches for the production and requested all of them back after filming ended. The design did not enter commercial production until 2019, roughly five years after the film’s November 2014 release.
What is a good alternative to the Hamilton Khaki Field Murph?
Within Hamilton’s range, the Khaki Field Auto (H70515137, about $845) offers the same movement and military proportions with a date window at a lower price. For an entry-level automatic field watch, the Seiko 5 Sports SRPD55 (around $200–250) is the most widely recommended option.
Sources
- aBlogtoWatch: Hamilton Watches in the Movie Interstellar
- Worn & Wound: Hamilton Watches in Interstellar
- Worn & Wound: One of the All-Time Great Movie Watches Gets an Update
- The Slender Wrist: What Is the Watch from Interstellar?
- Lexor Miami: The Best Hamilton Watches to Buy in 2026