Introduction
The Zodiac Olympos is a name that resonates with collectors who appreciate the golden era of chronograph design. Originally launched in the 1960s, the Olympos was Zodiac’s answer to the growing demand for sporty, legible chronographs. Fast-forward to today, and the reference ZO9703 brings that same spirit back, wrapped in a package that respects the past while embracing contemporary watchmaking standards.
This review focuses on the ZO9703, a stainless steel variant with a striking blue dial and a steel bracelet. It’s a watch that immediately evokes the jet-set optimism of the 1960s, yet its construction and movement are thoroughly modern. For the young collector seeking a chronograph with genuine heritage, the Olympos offers a compelling alternative to the ubiquitous Speedmaster or Carrera.
We’ll dissect every aspect of the ZO9703—from its case architecture and movement to its real-world wearability and investment potential. Whether you’re a seasoned horology enthusiast or a newcomer looking for your first serious chronograph, this review will help you decide if the Olympos deserves a place in your collection.
Manufacture History
Zodiac was founded in 1882 in Le Locle, Switzerland, and quickly gained a reputation for robust, innovative timepieces. The brand is best known for the Sea Wolf dive watch, but its chronograph line—especially the Olympos—has become a cult favorite among vintage enthusiasts. Today, Zodiac operates under the Fossil Group umbrella, yet continues to produce watches that honor its storied past.
Movement
At the heart of the ZO9703 beats the STP 1-11, a Swiss automatic chronograph caliber based on the ETA 7750 architecture. It features a cam-actuated chronograph, a quick-set date, and a robust construction. The finishing is industrial but clean, with perlage on the mainplate and Geneva stripes on the rotor. Power reserve is 48 hours, and the balance operates at 28,800 vph. While not COSC-certified, the movement is reliable and easy to service, making it a practical choice for daily wear.
Specifications
- Case Diameter: 40mm
- Case Thickness: 14.5mm
- Lug-to-Lug: 48mm
- Case Material: Stainless steel
- Crystal: Sapphire
- Water Resistance: 100m
- Lume: Super-LumiNova
- Bracelet/Strap: Stainless steel bracelet
- Clasp: Deployant
Wrist Feel
On the wrist, the Olympos ZO9703 wears larger than its 40mm diameter suggests, thanks to the broad bezel and prominent pushers. The 14.5mm thickness is noticeable, but the stepped case design and downturned lugs help it sit comfortably on most wrists. The bracelet is well-articulated, with solid end links and a comfortable taper from 20mm to 16mm at the clasp.
The weight is substantial without being cumbersome—around 160 grams on the bracelet. The balance is excellent, and the watch never feels top-heavy. The signed deployant clasp is secure and offers micro-adjustment, though some may prefer a more modern tool-free adjustment system. Overall, it’s a watch that feels purposeful and robust, ideal for daily wear.
Accuracy
In real-world use, the STP 1-11 movement typically runs within -5 to +10 seconds per day, which is acceptable for a non-COSC chronograph. With careful winding and consistent wear, many owners report rates around +4 to +6 seconds. The chronograph function operates smoothly, with crisp start/stop and a clean reset to zero. Day-to-day, you can expect reliable timekeeping without obsessive regulation.
Occasions
The Olympos is versatile enough for sport, daily wear, and travel. Its 100m water resistance makes it suitable for swimming, though it’s not a dedicated dive watch. The chronograph and tachymeter bezel are useful for timing events, and the date function adds practicality. It pairs well with casual attire and can even dress up with a leather strap.
Wrist Presence
4/5 — The Olympos commands attention without shouting. Its vintage proportions and blue dial catch the light beautifully, and the chronograph subdials add visual complexity. It’s a watch that enthusiasts will notice, but it doesn’t scream for attention like a flashy diver or a diamond-set dress watch.
Reference Variants
The ZO9703 is part of a family of Olympos reissues. Other references include the ZO9701 (black dial on bracelet), ZO9702 (silver dial on leather), and ZO9704 (panda dial, limited edition). Each shares the same case and movement, differing only in dial color and strap options.
Similar Watches
In the same price and style bracket, consider the Omega Speedmaster Moonwatch (manual wind, higher price), TAG Heuer Carrera 39mm (thinner, more modern), and Longines Avigation BigEye (pilot style, similar heritage). All offer excellent alternatives depending on your preferences.
Homages
For budget-conscious buyers, the Loreo Chronograph 1960s (around $150) and Pagani Design PD-1701 (around $80) offer similar aesthetics with quartz or mecha-quartz movements. They lack the Swiss pedigree and finishing of the Zodiac, but provide a taste of the look for a fraction of the cost.
Investment Value
The Olympos ZO9703 has an MSRP of $1,995 and typically sells for around that new. Pre-owned examples range from $1,400 to $1,800, making it a stable investment. It’s not a quick flipper, but its limited production and vintage appeal suggest slow appreciation over time. No major auction history exists, but the model is well-regarded among collectors.
Service Interval
Zodiac recommends service every 5 years, costing approximately $600. Because the movement is based on the ETA 7750, any competent watchmaker can service it, and parts are widely available. Authorized service is not required, but using a reputable watchmaker is advised.
Pros and Cons
Pros
- Authentic vintage design with modern reliability
- Robust Swiss automatic chronograph movement
- Comfortable bracelet with solid construction
- 100m water resistance suitable for swimming
Cons
- Thick case (14.5mm) may not fit under dress cuffs
- Movement is not in-house and lacks COSC certification
- Limited availability of reference variants
- Clasp lacks on-the-fly micro-adjustment
Final Verdict
The Zodiac Olympos ZO9703 is a beautifully executed reissue that captures the spirit of the 1960s chronograph without sacrificing modern practicality. It offers a compelling alternative to the usual suspects, with a movement that is reliable and easy to service. For the collector who values heritage and character over hype, the Olympos is a worthy addition to any rotation.
