A5 Tactical Field - 40mm USA Auto

Sale price$ 629
Choose Your Build: A5 | Automatic 40mm - $599
Sizing Guide

Need Help Choosing a Case Size?

Here at Vaer our goal is to build watches that can be worn everyday, in all conditions. A critical aspect of longterm wear is comfort and fit. Having a watch that is either too big, or too small can quickly disqualify it from a place in your daily rotation. If you're new to watch case sizing, below is a general overview of the sizes of our 5 core case designs.

If you'd like to read our comprehensive guide to case sizing click here.

Watches are measured by case diameter. This measurement does not include the crown or lugs.

1) 36mm - Smaller Wrists
2) 38mm - Small/Medium Wrists
3) 39mm - Medium Wrists
4) 40mm - Medium Wrists
5) 42mm - Medium/Large Wrists

With that in mind, we've created this case sizing guide to help you choose the watch that is ideal for your particular wrist shape and style preference.

Notes: All Vaer watches are shown on the same 7 inch (177mm) diameter wrist. This is approximately the median wrist size of an adult man. Watches are shown in size from smallest to largest.

1) 36mm Field Case 

Sizing Guide: Best for Smaller Wrists
Suggested For:
6.25”- 7.25” wrists
36mm models: S3, C3, A3, A7, A12  

2) 38mm Dive Case

Sizing Guide: Best for Smaller Wrists
Suggested For:
 6.5”- 7.5” wrists
38mm models: DS4, D4, DS5, R1 Oceanracer

3) 39mm Dive Case

Sizing Guide: Best for Medium Wrists
Suggested For:
 6.5”- 7.75” wrists
39mm models: D5, G5, G7

4) 40mm Field Case

Sizing Guide: Best for Medium Wrists
Suggested For:
 6.5”- 7.75” wrists
40mm models: S5, C5, A5, A12, R1 Rally & Tactical

5) 42mm Dive Case 

Sizing Guide: Best for Medium/Large Wrists
Suggested For:
 7”- 8.5” wrists
42mm models: D4, DS4, DS5, D5

First Strap 🔒: Quick Release - Tropic Strap
Second Strap (You Choose): FKM Waffle Strap - Black (+$30)
In stock
Free USA Shipping

With optional to 2-day shipping available.

Waterproof Warranty

Guaranteed 100% ocean-ready.

Two Straps Standard

Our 20mm straps are interchangeable

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Feet of Water Resistance

This watch is perfect for swimming and surfing, and it's protected by our waterproof warranty.


Five Star Reviews

Our success has been built on delivering exceptional value to our owners.

The Perfect Everyday Watch

What makes the A5 special? In our opinion, it's the perfect balance of competing ideas. Simultaneously traditional and modern, elegant and rugged, simple and complex - this watch is a humble, everyday wearer, with the specs and credentials to put most $1000 watches to shame.

1. Ocean-Ready

Life is unpredictable. The perfect everyday watch needs to provide peace of mind in all conditions. Whether you're heading out in the rain or taking a jump in the pool, this watch never needs to be left on the sidelines.

2. Scratch Resistant

Impact is inevitable. When it happens, you want to be sure your watch won't scratch. That's why we use premium sapphire crystal to protect our dials (the second hardest material after diamond).

3. Easy Customization

Every day is different. And the easiest way to switch up the look (and functionality) of your watch is to change straps. That's why every Vaer watch ships with 2x quick-change strap options.


Watches for Every Budget

Compare with similar watches

Many of our watches look similar, though have very different prices. This is due to movement type (the watch's power source), and assembly origin. Below you can find a chart comparing how different models stack up.

Water Resistance

100 meters (10ATM)

100 meters (10ATM)

100 meters (10ATM)

Sapphire Crystal

Dial (Domed) & Caseback

Dial (Domed)

Dial (Flat)

2x Straps





Japan Automatic

Japan Solar Quartz

Japan Quartz

Pride in USA Craftsmanship

We've always invested in USA sourcing, and today, we're proud to be the largest independent watch assembler in the United States. We're committed to American production not only because it improves product quality, but also because it adds a strong sense of identity to our brand.

Confidence to Disconnect

Our mission at Vaer is to make products that will last and become more important and personally significant over time. While luxury and technology have a place in modern life, the products we love the most are durable everyday items that promote values of simplicity and independence.

Freedom in Customization

Every watch we've ever sold has come standard with two interchangeable 20mm Vaer straps. This cross-compatibility across our entire product line, gives owners increased functionality and value, with the option to easily change up their strap.