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S5 Calendar Field - 40mm Quartz

Regular price $ 179

Our Standard Issue collection is an introduction to Vaer durability in a streamlined design. The S5 combines value and functionality, offering dive-level water resistance and a timeless, minimalist aesthetic in a 40mm case. The Calendar Field is a modern homage to the iconic A-11 military service watch of WW2.

S3 | Calendar Field Watch


The Vaer S3 is the retro-sized version of our standard issue line. While the smallest and most comfortable version of our watch, it still offers the same durability of all Vaer models.

  • Ideal Wrist Size: 5.5" - 7.5"
  • Total Weight:
    46 grams
  • Water Resistance 10ATM

S5 | Calendar Field Watch


The Vaer S5 is the regular sized version of our standard issue line. Providing a happy medium in terms of fit, it’s the ideal size for men’s wrists larger than 7 inches in diameter.

  • Ideal Wrist Size: 7.0" - 9.5"
  • Total Weight:
    56 grams
  • Water Resistance 10ATM

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Shipping & Returns

It’s important to us that you’re fully satisfied with your purchase. If you receive your watch, and for some reason you’re not in love with it, you can send it on back! Products can be returned for a full refund within 30 day from receiving our watch, as long as your product is in unused/unworn condition. We stand behind and products, which is Vaer offers a warranty of 2 years from purchase. If you experience any issues due to defects in materials and workmanship, we’ll either repair or replace your watch. Your watch is meant to be taken in the water and used in daily life, so if your watch for some reason fails in the water, you can reach out to us, and we’ll make it right.

"If you drew a three-way Venn diagram that compared
style, durability, and price, Vaer’s watches would be dead center."

- Huckberry

Essentially Unbeatable

What's the best possible watch you could make for under $200? That was guiding question in creating the Vaer S5. Are there cheaper alternatives out there? Sure - do those cheaper options feature an award-winning case design, and a guaranteed waterproof warranty? Definitely not. While this may be the introductory Vaer watch, it's also the best value, with design and durability that punches far above the price point.


Water Resistance Rating

Love the water? The Vaer S5 is perfectly suited for swimming, surfing and diving.


Glass Crystal

The S5 features a durable and scratch resistant flat sapphire crystal.




The S5 features best-in-class lume paint that maintains a visible glow well into the night.

Guaranteed Waterproof

10ATM tested with a locking crown

Vaer has always been an ocean-based brand. Headquartered half a mile from the Pacific coastline, we view water resistance not merely as a hypothetical "nice-to-have," but as a functional everyday necessity. While all Vaer watches are guaranteed waterproof, the S5 is particularly well suited to extended ocean adventures, boating trips, and overland backpacking due to the extreme accuracy of quartz powered watches. While the Vaer mechanical A5 and A7 collections offer elevated technical craftsmanship, the S5 quartz is the best set-it-and-forget option for outdoor use.

Designed to Customize

2x Quick-Change Straps with Every Watch

One of the unique features of S5 collection is that you get 2 straps with your watch. Additionally, all Vaer straps are fully compatible with the S5 - allowing a huge amount of customization by adding a 3rd or 4th strap. Pairing the watch with our USA made Horween Leathers straps, or our range of ocean-ready nylon and silicone designs help keep the watch feeling new, even with years of everyday use.

Inspired by History

An Homage to the Iconic A-11 Military Watch

The US Military's Type A-11 Service Field Watch is one of the most important, and significant military watches of all-time. Like our A12 Dirty Dozen, and C3 Korean Field, the S3/S5 Calendar draws deep inspiration from the original WW2 model on which it is based, while still offering a unique design, and the convenience of modern durability and precise quartz timekeeping.  

Built to Last

Bringing an end to planned obsolescence

Your daily wristwatch is an incredibly important and personal object. Regardless of price point, we're dedicated to the idea that watches should grow more valuable over time as they collect memories, and confront new challenges. The Vaer S5 is powered by a battery that will keep accurate time for 3-5 years. After this period, the battery can be easily replaced either by a local watch shop, by our team of technicians (via mail), or if you have the tools, at home on your workbench.

Technical Specifications


S5 Calendar



Case Material

316L Stainless Steel

Case Dimensions

40mm x 48mm x 9.4mm


Flat sapphire crystal

Case Back

Etched Steel


Miyota 2035

Water Resistance


Case Weight

46 grams


Screw down

Battery Life

40 Months

Hour + Minute Color

Brushed Steel

Second Hand Color



C1 SuperLuminova

Timing Tolerance

-10/+20 sec / month


Silicone Tactical Strap (Standard), Nylon, Bracelet, Leather (Optional)

Strap Size

20mm (Compatible with all Vaer straps)

Bracelet Details

Dive Clasp, 4 Micro Adjustments, Solid end links, 18mm Taper


24 Months (Waterproof Guarantee)




China - Want the USA assembled version? Click here

Videos About this Watch

Learn more about what sets the Calendar Field apart.

Complete Peace of Mind

Vaer is a small self-funded company, and we’ve spent countless hours designing and building the S5 watch. We hope you love it as much as we do. But if for some reason there's a problem or it's not a fit, you can get in touch with us, and as the founders we'll do everything we can to ensure you have a positive experience with our brand.  

Free Shipping

For Purchases in America

Due to batch assembly and demand, most watches ship in 7 days.

Easy Returns

Full Refund within 30 Days

We think you'll love this watch. If not, we make it easy to exchange.

Full Warranty

2 Year Complete Coverage

All Vaer watches are sold with a 24 month guaranteed warranty.

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S5 Calendar Field - 40mm Quartz
Silicone - Black / Nylon - Khaki - $ 179
  • Silicone - Black / Nylon - Khaki - $ 179
  • Silicone - Black / Quick Release - Steel Bracelet - $ 219

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