The Zodiac Olympos Automatic ZO9703 is a watch that seamlessly blends modern craftsmanship with vintage flair, capturing the essence of a classic Zodiac timepiece while incorporating contemporary features. As someone who appreciates timeless designs, adding the Zodiac Olympos to my collection was a satisfying choice. This watch not only delivers on style but also offers a fascinating history and excellent build quality. If you’re curious about what makes this watch special, let’s dive into the story behind Zodiac, the features of the Olympos ZO9703, and why it might be a worthy addition to your collection.

A Brief History of Zodiac Watches
Founded in 1882 by Ariste Calame in Le Locle, Switzerland, Zodiac has a rich history in the watchmaking world. Initially, Zodiac focused on producing high-quality pocket watches, but it wasn’t until the early 20th century that they began crafting wristwatches that gained international recognition. By the 1950s, Zodiac had established itself as a pioneer in the diving watch industry with the launch of the Sea Wolf, one of the first commercially available dive watches. This innovative spirit continued with other models, making Zodiac a favorite among divers, military personnel, and watch enthusiasts.
The Zodiac Olympos, first introduced in 1961, was another iconic model known for its unique “manta ray” case shape and asymmetrical design. It was a statement piece that stood out among its contemporaries, emphasizing both form and function. Today, the modern Olympos collection pays homage to this vintage classic, merging historical aesthetics with updated mechanics.

Zodiac Olympos Automatic ZO9703: Key Specifications
– Model: Olympos Automatic ZO9703
– Case Material: Stainless steel
– Case Dimensions: 37.5mm diameter
– Case Thickness: 11mm
– Crystal: Scratch-resistant sapphire crystal
– Dial: Sunburst silver-tone with applied indices
– Movement: STP 3-13 automatic movement
– Power Reserve: Approximately 44 hours
– Water Resistance: 50 meters (5 ATM)
– Strap: Genuine leather with a pin buckle clasp
– Price: Approximately $1,000 – $1,500 USD
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Design and Aesthetics
The standout feature of the Olympos ZO9703 is its distinctive case shape, reminiscent of the original “manta ray” design from the 1960s. The 37.5mm stainless steel case is elegantly sized, appealing to those who prefer a more classic and understated wrist presence. The sunburst silver-tone dial captures light beautifully, giving the watch a dynamic appearance depending on the viewing angle.
The watch’s hands and indices are sleek and minimal, contributing to a clean, sophisticated look. There’s no clutter on the dial, which makes it easy to read at a glance. The use of sapphire crystal ensures durability, protecting the dial from scratches and everyday wear.
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The Movement: STP 3-13 Automatic
Powering the Zodiac Olympos is the STP 3-13 automatic movement, a reliable Swiss-made engine known for its robustness and precision. This movement offers a 44-hour power reserve, making it suitable for daily wear without requiring constant winding. The STP 3-13 is often compared to the ETA 2824-2, providing similar performance and reliability but at a more accessible price point.
The watch also features a date complication at the 3 o’clock position, adding a practical touch without disrupting the symmetry of the dial. The see-through case back allows a glimpse of the movement in action, which is a nice touch for those who appreciate the art of watchmaking.

Comfort and Wearability
One of the highlights of the Olympos ZO9703 is its comfortable fit on the wrist. The genuine leather strap is soft and conforms well to the wrist, making it ideal for extended wear. At 37.5mm, the case size is perfect for those who enjoy a classic, more refined look. It’s versatile enough to be dressed up for formal occasions or worn casually, making it a great all-rounder in any collection.
The watch is also water-resistant up to 50 meters, which means it can handle light splashes and rain but is not recommended for swimming or diving.
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Pros of the Zodiac Olympos Automatic ZO9703
1. Unique Design: The manta ray case shape is a tribute to Zodiac’s rich heritage, making it a standout piece in any collection.
2. Reliable Movement: The STP 3-13 automatic movement offers excellent accuracy and reliability, along with a solid power reserve.
3. Versatile Aesthetic: The clean, minimal dial design makes it suitable for various occasions, from formal events to casual outings.
4. Quality Materials: From the sapphire crystal to the genuine leather strap, the watch is made with high-quality components that ensure durability.
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Cons of the Zodiac Olympos Automatic ZO9703
1. Limited Water Resistance: With a rating of only 50 meters, this watch isn’t suitable for swimming or diving, which might be a downside for those looking for a more versatile sports watch.
2. Size Preference: The 37.5mm case might be considered small by today’s standards, especially for those who prefer larger, more modern-looking watches.
3. Lack of Lume: The absence of luminescent markers on the dial means readability in low light conditions is limited.
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My Personal Experience with the Zodiac Olympos
Owning the Zodiac Olympos has been a delightful experience. I was initially drawn to its vintage-inspired design, which sets it apart from the more conventional pieces in my collection. The watch’s elegant proportions make it a perfect dress watch, yet it’s versatile enough for everyday wear. I’ve received numerous compliments on its unique case shape, which often leads to interesting conversations about Zodiac’s history.
In terms of performance, the watch has been a reliable timekeeper, maintaining accuracy without any noticeable deviation. The comfort of the leather strap is another highlight, making it a joy to wear for hours on end.
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Final Thoughts
The Zodiac Olympos Automatic ZO9703 is a tribute to a bygone era of watchmaking while incorporating modern reliability. It’s a fantastic option for those who appreciate vintage aesthetics without compromising on quality and performance. This watch stands out not just for its design but also for its storied heritage, making it a conversation starter and a timeless addition to any collection.
Whether you’re a seasoned collector or new to the world of watches, the Zodiac Olympos offers something truly unique. Its blend of history, craftsmanship, and style make it a watch worth considering.
Have you had any experience with Zodiac watches? Let me know your thoughts in the comments or reach out via email. I’d love to hear your take!