The Vaer C4 Tactical Field Solar pairs a 41.5mm steel case with a solar-powered Epson VS-42 movement, sapphire crystal and a manufacturer-rated 200m water resistance. Vaer listed the steel model for $519 and sold out when its product page was accessed on October 12, 2026, with a late-October restock expected. WatchReport reviewer Don Evans found the watch comfortable on his 7.5-inch wrist and praised its lume, while noting that the seconds hand did not align with every marker. Those fit and alignment comments are his individual observations, not standardized test results.
What the Vaer C4 Tactical Field Solar offers
The C4 is a solar field watch with a black matte dial, a one-way 12-hour bezel and a recessed screw-down crown at 4 o’clock. Vaer specifies a matte 316L stainless-steel case, sapphire crystal with anti-reflective coating, and an Epson VS-42 solar movement made in Japan. The 20mm lugs accept interchangeable straps; Vaer says it does not currently offer a compatible steel bracelet.
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Its 20ATM/200m water-resistance rating is Vaer’s published specification. The reviewed sources do not establish an independent water-resistance test or certification for this model.
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Vaer’s published dimensions are 41.5mm in diameter, 48mm lug-to-lug and 12.8mm thick; the stated case weight is 70.6g. The shared 48mm lug-to-lug measurement may be useful when comparing its footprint with other watches, while the C4’s diameter and thickness give it a more substantial profile than slimmer field-watch options.
#1 Best Overall
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In his February 4, 2026 review for WatchReport, Don Evans said the C4 wore comfortably on his 7.5-inch wrist. He also found the recessed crown easy to operate, writing: “The crown, located at 4 o’clock, is easy to unscrew and set the time, and it screws back down smoothly.” This is one reviewer’s experience, not a guarantee of fit or crown feel for every wearer.
Dial, markers and lume
The manufacturer describes a matte black dial with green-tinted numerals, 24-hour markers and three-dimensional C3 lume blocks. The hour, minute and seconds hands are also luminous; Vaer rates the lume 10/10. Evans praised the dial’s readability and said the lume was the strongest among the Vaer watches he had reviewed. He estimated it remained usefully readable for seven to eight hours in darkness, an informal personal observation rather than a controlled measurement.
Rank #2
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Seconds-hand alignment
Evans’s one stated complaint was that the seconds hand missed some minute markers: “My one complaint would be that the second hand does not hit all of the markers dead on.” That describes the unit he reviewed; the available evidence does not show whether the same alignment occurs across other C4 watches.
Solar movement, reserve and stated timing
The C4 uses the Japan-made Epson VS-42 solar movement. Vaer states that six hours of light can provide up to six months of power reserve and gives a timing tolerance of -10 to +20 seconds per month. These are manufacturer specifications, not independent measurements of charging performance or accuracy. The cited material does not specify the light conditions behind the six-hour charging figure, so treat it as Vaer’s stated claim rather than a universal charging time.
Rank #3
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How the C4 compares with the Vaer C5
The C5 Tactical Field Solar is the closest same-brand solar field alternative in the cited product listings. The figures below are Vaer’s published specifications and listing prices accessed October 12, 2026; prices and stock can change.
| Specification | Vaer C4 Tactical Field Solar | Vaer C5 Tactical Field Solar |
|---|---|---|
| Case diameter | 41.5mm | 40mm |
| Lug-to-lug | 48mm | 48mm |
| Thickness | 12.8mm | 10.4mm |
| Water resistance | 200m | 100m |
| Listed price | $519; steel model sold out | $379 |
| Movement and stated timing tolerance | Solar; -10/+20 seconds per month | Solar; -10/+20 seconds per month |
The C4 is the larger, thicker and higher-rated option, with a one-way 12-hour bezel. The C5 is slimmer and was listed at a lower price. Both watches’ water-resistance ratings, movement details and timing tolerances are manufacturer claims, not independent test results.
Rank #4
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Price, stock and warranty
When Vaer’s product page was accessed on October 12, 2026, the steel C4 was listed at $519 and marked sold out, with a late-October restock expected. The timing of that expected restock is not a guarantee, and current price and stock may differ. WatchReport’s February 2026 review cited preorder pricing starting at $479 and listed $475 for the blasted finish and $499 for DLC. Those are separate, dated listing snapshots; Vaer’s product page is the more relevant source for the current listed steel price.
Vaer states that the watch has a two-year limited warranty covering defects in materials or workmanship under normal use. Its product material also promotes a two-year waterproof warranty. These are distinct statements; consult Vaer’s current warranty terms for the applicable conditions and exclusions.
Best Value
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Which wearer should consider the C4?
- Consider it if you want solar power, a sapphire crystal, a 200m manufacturer rating and a field-watch dial with a timing bezel.
- Check the dimensions first if you prefer a thinner or smaller watch: the C4 measures 41.5mm across and 12.8mm thick, although its 48mm lug-to-lug length may matter more for how it spans your wrist.
- Look at the C5 if you want a slimmer, less expensive Vaer solar field watch and can accept its published 100m water-resistance rating instead.
- Plan for a strap rather than a bracelet if you prefer steel: the lugs take 20mm interchangeable straps, and Vaer lists no compatible steel bracelet for the C4.
The C4’s appeal rests on its specified construction and feature set, with encouraging but individual wear and lume impressions from one reviewer. The available evidence does not establish independent accuracy, charging, water-resistance, shock-resistance or lume-duration testing.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
