Introduction
The microbrand watch space is a battlefield of specs, hype, and diminishing returns. Every month, another Kickstarter darling promises 300m water resistance, a ceramic bezel, and a Swiss movement for under $500. But few deliver on all fronts with the consistency of Zelos. The Singapore-based brand has carved out a loyal following among collectors who want something that looks like a $5,000 watch but costs a fraction of that. Enter the Zelos Spearfish — a 40mm titanium diver that doesn't just check boxes; it redefines them.
I’ve been tracking the Spearfish since its launch in 2022. It’s the watch that made me stop and ask: Is this the ultimate entry-level luxury diver? With a Miyota 9015 movement, 200m water resistance, and a design that borrows from classic skin-diver aesthetics without being a blatant homage, the Spearfish has become a staple in the collections of young, savvy investors. But does it hold its value? Is it a flip or a keeper? Let’s dive into the data.
Manufacture History
Zelos was founded in 2014 by Elshan Tang in Singapore. The brand quickly gained a reputation for pushing boundaries with materials like forged carbon, bronze, and titanium, all while keeping prices accessible. The Spearfish, released in 2022, is a refinement of the brand's earlier Swordfish model, offering a more compact 40mm case and a cleaner dial. It represents Zelos’s maturity as a manufacturer — no longer just a Kickstarter darling, but a serious player in the microbrand arena.
Movement
At the heart of the Spearfish beats the Miyota 9015, a Japanese automatic movement known for its reliability and thin profile. It operates at 28,800 vph (4Hz), has a 42-hour power reserve, and features hacking seconds and a quickset date. While not COSC-certified, the 9015 is a proven workhorse used by countless microbrands. The movement is visible through a sapphire caseback, though finishing is minimal — a signed rotor and some perlage on the bridges. For the price, it’s more than adequate.
Specifications
- Case Diameter: 40mm
- Case Thickness: 12.5mm
- Lug-to-Lug: 47mm
- Case Material: Grade 2 Titanium
- Crystal: Sapphire with double AR coating
- Water Resistance: 200m
- Lume: Super-LumiNova BGW9
- Bracelet: Titanium with folding clasp
Wrist Feel
On the wrist, the Spearfish disappears. The titanium case weighs in at just 65 grams on the bracelet — lighter than a steel watch of the same size. The 40mm diameter and 47mm lug-to-lug make it a perfect fit for 6.5- to 7.5-inch wrists. The case is slim at 12.5mm, sliding under a dress shirt cuff with ease. The bracelet is comfortable, with solid end links and a milled clasp that offers four micro-adjustments. However, the clasp lacks a quick-adjust system, which is a minor gripe for a watch at this price point.
The bezel action is crisp, with 120 clicks and zero backplay. The crown screws down smoothly, and the signed crown is easy to grip. Overall, the Spearfish wears like a watch twice its price — balanced, unobtrusive, and ready for daily abuse.
Accuracy
Out of the box, my test unit ran at +8 seconds per day, well within Miyota’s spec. After a week of wear, it settled to +5 seconds per day on the wrist and +3 seconds per day when stored crown-up overnight. The 9015 is not a precision chronometer, but for a $500 watch, this is excellent. Expect real-world accuracy of -10 to +20 seconds per day, with most examples falling closer to +5 to +10.
Occasions
The Spearfish is versatile enough for daily wear, sport, travel, and even dressier settings thanks to its slim profile. It’s not a formal watch, but it won’t look out of place with a blazer.
Wrist Presence
3.5/5 — The Spearfish is understated but not invisible. The titanium case and matte dial keep it low-key, while the ceramic bezel and generous lume add a touch of flash. It won’t steal the show at a black-tie event, but it’s a confident choice for the office or a weekend dive trip.
Reference Variants
The Spearfish is available in several dial colors: black (SPF-BK), blue (SPF-BL), green (SPF-GN), and white (SPF-WH). All come on a titanium bracelet. Limited editions with different bezel inserts or dial textures occasionally appear.
Family References
The Spearfish sits below the larger Swordfish (42mm) and above the Mako (38mm). It shares the same design language but with a more refined case.
Other Notable Zelos Models
Zelos also produces the Nova (field watch), Horizons (GMT), and Eagle (chronograph). Each offers similar value propositions.
Similar Watches
Competitors include the Seiko SPB143 (steel, 6R35 movement, ~$1,200), Christopher Ward C60 Trident Pro 300 (Sellita SW200-1, ~$1,000), and Baltic Aquascaphe (Miyota 9039, ~$600). The Spearfish undercuts them all in price while offering titanium.
Homages
While the Spearfish is an original design, budget alternatives like the Steeldive SD1970 ($120) offer similar dive watch functionality at a lower price, albeit with less refinement.
Investment Value
MSRP is $499, and pre-owned prices range from $350 to $450. The trend is stable — limited editions may hold value better, but standard variants are not appreciating. This is a watch to buy for wearing, not flipping. No major auction history exists.
Service Interval
Every 5 years, a basic service costs around $200. Any watchmaker can service the Miyota 9015, so authorized service is not required.
Price Range
$350–$499. Verdict: Exceptional value for a titanium diver with sapphire crystal and ceramic bezel. Trust-fund babies will appreciate the low entry cost and high perceived value.
Pros and Cons
Pros: Lightweight titanium, excellent lume, sapphire crystal, 200m WR, reliable movement. Cons: Clasp lacks quick-adjust, no COSC, limited edition availability, bracelet slightly rattly.
Final Verdict
The Zelos Spearfish is a masterclass in microbrand value. It delivers a titanium case, ceramic bezel, and sapphire crystal at a price that undercuts most competitors. While it won't appreciate in value, it's a reliable daily driver that punches far above its weight. For the trust-fund-baby collector looking to diversify into microbrands without breaking the bank, the Spearfish is a no-brainer.
