Longines Spirit Zulu Time 1925This is a modern GMT model that pays homage to the 100th anniversary of the brand's first dual time zone display wristwatch. Reference L3.803.5.53.6The 39mm case, COSC-certified L844.4 automatic movement, 72-hour power reserve, 100-meter water resistance, and black dial/rose gold detail combination make it stand out. The short answer is: If you're looking for an elegant yet technical, vintage-inspired yet wearable Swiss GMT, this model is one of Longines' strongest modern interpretations of the Spirit.
What is Longines Spirit Zulu Time 1925?
The Longines Spirit Zulu Time 1925 is a special GMT watch that brings together Longines' aviation and multi-time zone heritage in a modern case. The model's official name refers to an early Longines wristwatch produced in 1925 that allowed for tracking a second time zone. Therefore, this isn't just a color variation, but an anniversary interpretation directly linked to the brand's history.
On Longines' official website, the model... true GMT In other words, it's positioned according to travel-type GMT logic. This structure is more practical than office-type GMT solutions, especially for frequent travelers, as it allows for independent adjustment of the local time hour.

The Story of 1925 and the Name Zulu Time
The term "Zulu Time" is based on the UTC reference, which is used in aviation and military time coordination. Longines isn't just using this name as a romantic label on the new model; it's bringing the brand's historical connection with pilots, explorers, and different time zones into the present day.
In the official Longines narrative, the Spirit Zulu Time 1925 is linked to the 100th anniversary of the brand's first dual-time zone wristwatch. This context is important because the model's value lies not just in its 39mm size or GMT complication; it's in Longines' presentation of its historical narrative in a contemporary, wearable form.
If you'd like to read more about Longines' brand universe, visit Bersenti. Longines Zulu Time This article would be a good complement to this review.
Design: Balance of 39 mm Case and Gold Details
One of the strongest aspects of this model is its 39mm case size. GMT watches often look thick, bulky, and sporty. The Longines Spirit Zulu Time 1925, however, offers a more controlled profile. The 39mm diameter is more suitable for both classic watch lovers and those who want an understated GMT for everyday use.
The matte black dial, applied indices, gold-tone hands, and warm-colored details around the bezel elevate the watch beyond being just a plain steel GMT. The use of stainless steel and 18-carat rose/red gold “cap 200”, as stated in Longines’ technical description, gives the model a more refined character with a vintage aviation aesthetic.

Mechanism: L844.4 and True GMT Advantage
Inside the Longines Spirit Zulu Time 1925 L844.4 It features an automatic movement. This caliber is COSC certified, uses a silicon balance spring, and offers approximately 72 hours of power reserve. This trio is significant: claimed precision, more modern resistance to magnetism, and a power reserve that can last through the weekend.
On the GMT side, the real value lies in the practical adjustment of the local time hour hand. When you arrive in a new country while traveling, you can easily switch the main time display to local time and use the GMT hand to keep track of your home time. Therefore, this model isn't just about having a "fourth hand on the dial"; it truly offers a GMT solution suitable for travel.
Technical Specifications
According to official Longines product data, the Spirit Zulu Time 1925 offers a package that is durable enough for everyday use but doesn't lose its dress-sport edge.
- Reference: L3.803.5.53.6
- Case diameter: 39 mm
- Case structure: Stainless steel and 18k rose/red gold cap 200 detail
- Dial: Black
- Glass: Scratch-resistant sapphire crystal
- Movement: Longines L844.4 automatic GMT
- Certification: COSC chronometer certification
- Power reserve: Approximately 72 hours
- Water resistance: 100 meters
- Strap/bracelet: Steel bracelet, black NATO strap in box and replacement tool.
How does it look on the wrist and for everyday use?
The 39mm size is the biggest advantage of this watch. While larger versions of the Spirit Zulu Time family might look noticeable on some wrists, the 39mm case appeals to a wider range of users. With a steel bracelet, it offers a high-quality and robust feel, while the NATO strap provides a more comfortable and sporty style.
100 meters of water resistance is a strong advantage for everyday use. It's a level that doesn't cause much anxiety for the user in scenarios such as hand washing, rain, travel, and summer use. Of course, this isn't a diving watch; however, 100 meters of water resistance in the dress-sport GMT category is a reassuring detail.

For whom does it make sense?
The Longines Spirit Zulu Time 1925 makes sense for those who want a single watch that can handle travel, office, and weekend use. For someone just looking for technical GMT, there might be more affordable alternatives; for example... Seiko 5 Sports GMT SSK023K A more accessible entry point. For those seeking a more military/pilot character. Laco Hamburg GMT It opens a different route.
But Longines is doing something different here: offering a GMT that is Swiss-originated, COSC-certified, with a strong historical narrative and a more pronounced sense of luxury. If you're curious about Longines' modern collection language... Longines Conquest The text itself can also be a good second reading to understand the brand's sporty-classic aesthetic.
To establish the brand's rightful place within Swiss watchmaking. Swiss Watch Brands You can also check out the guide.
Brief Assessment
The Longines Spirit Zulu Time 1925 does best by combining the technical usability of a GMT with a romantic brand story. The 39mm case size is accurate, the L844.4 movement is robust, the 72-hour power reserve is meaningful for everyday use, and the 100-meter water resistance is reassuring. Its most debatable aspect is that the gold-toned details may not appeal to everyone. It might seem too hot for those who want a simpler steel GMT; however, it's a very balanced option for those seeking a bit of vintage feel, a touch of travel spirit, and a more refined Longines character.
Resources
- Longines Spirit Zulu Time 1925 official landing page
- Longines L3.803.5.53.6 official product page
- Longines official history page
FAQ
How many mm is the Longines Spirit Zulu Time 1925?
The model has a 39 mm case diameter. This size offers a more balanced and wearable profile among GMT watches.
Is Longines Spirit Zulu Time 1925 true GMT?
Yes. The model offers a GMT structure that allows for convenient adjustment of the local time hour hand, making it suitable for travel-type GMT use.
What mechanism does the Longines Spirit Zulu Time 1925 use?
The watch features a Longines L844.4 automatic GMT movement. The caliber is COSC certified and offers approximately 72 hours of power reserve.
Should I buy a Longines Spirit Zulu Time 1925?
If you're looking for a 39mm, Swiss-made, COSC-certified GMT watch with a strong historical narrative, this is a good option. For those who want a simpler or more affordable GMT watch, alternatives like Seiko and Laco can also be considered.