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Kowa TSN-663M 66mm Prominar Spotting Scope with Case

by Kowa
Save $250.00 Save $250.00
Original price $1,250.00
Original price $1,250.00 - Original price $1,250.00
Original price $1,250.00
Current price $1,000.00
$1,000.00 - $1,000.00
Current price $1,000.00

Free Shipping: to the contiguous U.S.

Estimated Arrival: Between 07-20 and 07-23

Kowa TSN-663M 66mm Prominar XD Angled Spotting Scope

Kowa TSN-663M 66mm PROMINAR XD Spotting Scope features high-quality optics in a lightweight, portable package. Engineered with unbelievably high-end XD objective lenses and extra-low dispersion optical glass, the Prominar XD lenses showcase ultra-sharp resolution and bright, clear colors at any distance. No color fringe or distortion, and they're nitrogen sealed for complete fogproof and waterproof protection. 

The lightweight and compact design of the TSN 663 makes it perfect for carrying along on a day hike or backpacking in the mountains.  The Kowa TSN-663M Prominar XD Spotting Scope is sold as Body Only and requires an eyepiece.


Inside the Box 

FREE GIFT - Kowa Protective Case
Kowa TSN-663 Angled Spotting Scope
Lens Caps
Cleaning Cloth
Instruction Manual 
Kowa Limited Lifetime Warranty 


Interchangeable Eyepieces
The Kowa TSN-663M Prominar XD Spotting Scope is compatible with multiple eyepieces so you can decide what's the best fit for you and your viewing style. 
1. The TE-9Z 20-60x Wide Zoom Eyepiece 
The 20-60x zoom magnification allows users to easily adjust the range and field of view for objects that are on the move. The lower range of magnification (20x) provides a larger field of view, which is ideal for spotting birds and other wildlife. The higher range of magnification (60x) is perfect for identifying and observing subjects at a distance in detail once you've spotted them. 
2. The TE-17HD 25x Long Eye Relief Eyepiece 
The 25x long eye relief eyepiece is perfect for use with glasses. The long eye relief provides a buffer for those who wear glasses and cannot place their eye directly on the eyepiece, in turn allowing for a complete field of view despite the additional space between the eyepiece and the eye. 

3. The TE-14WD 30x Wide Angle Eyepiece
The 30x wide angle eyepiece is great for locating subjects quickly or viewing multiple or large subjects that wouldn't fit inside the display of a standard eyepiece. 
Kowa's Premium XD Glass
Kowa's XD (eXtra-Low Dispersion) Glass combines high-performance optical glass and special concave dispersion lenses to dramatically reduce the color blur present in standard optical glass clearly showcasing almost imperceptible details and subtle changes in color. Added together with its backlight and low-light capabilities, even a beginner can recognize the difference in quality between Kowa's premium XD glass and other top competitors. 
Water & Fogproof
The TSN-663M housing is waterproof to JIS Protection Class 7 and filled with dry nitrogen gas to prevent internal fogging for clear viewing in any weather. 
Lightweight Magnesium Alloy Body 
The magnesium alloy body provides the strength and feel of a traditional metal body but at a much lighter weight. 
Anti-Glare Sunshade
The twist-out sunshade increases optical performance by reducing glare on the objective lens. 

Slide the hood away from the body to protect the lens from exposure to rain or to keep direct sunlight from entering the spotting scope. When the object you wish to view is difficult to find, the sight built into the lens hood can be used to find the object.
Quick Focus & Fine Adjustment
The focus knob of the spotting scope has a convenient two-step mechanism that allows for a smooth transition from quick focusing to fine adjustment so you can spot your subject easily and with all the detail Kowa's Prominar XD lenses have to offer.   

When the object is substantially out of focus, use the quick focus knob, to bring the object into focus 3 times faster than when using the fine focus knob. The quick focus knob can focus from 5m to infinity in only two revolutions. The fine focus is convenient for fine focusing and slight adjustments. The minimum focus distance is 5 meters.
Secure Eyepiece Lock
Kowa's mount system of the spotting scope allows the eyepiece to be easily attached and removed. The eyepiece locking mechanism securely mounts the eyepieces to the spotting scope and prevents the zoom eyepiece from accidentally falling out of the eyepiece mount from over-rotation that can occur when zooming.
Rotating Tripod Mount
The rotating tripod mount allows the spotting scope to be set at various angles while attached to the tripod so you'll always have the best view. The body of the spotting scope can be turned by loosening the lock screw counterclockwise and rotating the scope to the desired position. (The rotation range of the spotting scope is 225°.)
Universal Tripod Mounting Screw 
The tripod mount has a removable screw that allows the spotting scope to be attached to either 1/4 and 3/8 inch tripod heads. With the tripod screw inserted the mount can be used on 1/4 inch tripods. Removing the screw allows the scope to be attached to 3/8 inch tripods.

KR Protective Coating
Kowa's KR coating protects the lenses from dirt and other foreign residues that may affix to the lenses during normal use. Fingerprints or oil can be removed easily with the proper lens cleaning techniques.


Free Gift 

Kowa C-661 Fitted Case

Stay-On Case - The easy access stay-on case protects your scope from the elements even while you use it.

Carry Strap - The carry strap rests comfortably on your shoulder while walking or hiking. You don't have to hold it in your hands making it less likely to fall or drop.

TSN-663M Angled Spotting Scope - The C-661 Fitted Case is perfectly designed for your TSN-663M Angled Spotting Scope.



Objective Lens Diameter 66 mm
Body Only Yes
Minimum Focus Distance 6 m
Weight 2.2 lb



  • Angled Body
  • High-End Prominar XD Lenses
  • Advanced Design
  • Large Lens, Compact Size
  • Dual Focus (Quick and Fine)
  • Eyepiece Locking Mechanism
  • Universal Tripod Mounting Screw (fits 1/4 and 3/8 in)
  • Lightweight Magnesium Alloy Body
  • Completely Waterproof and Fogproof

Free Shipping On All Orders Over $100

We offer free standard shipping within the Continental US. If you choose our free shipping, expect your order to arrive within 7-10 business days.

We will notify you with any changes in the anticipated ship date as well.

Disclaimer: We have no influence over carrier's operations and we cannot make a package within their system move any quicker. Refunds will not be issued if your package arrives later than expected. If you need your item by a certain date, please order early to ensure it arrives in time. If you paid for our priority shipping and the item arrived later than 5 business days we will refund you the shipping cost.

 Trophy Optics is not responsible for any delivery error from the shipping company when the information we have provided is correct. If your package is lost or stolen, we will open a claim with the shipping company and it may take up to 10 days to resolve.


Order Confirmation

You will receive an order confirmation via email as soon as your order is placed. This ensures that your order has been received in our system and that your credit card has been pre-authorized for purchase. 

As soon as the stock is confirmed, we process the payment and ship your order within 1-3 business days.

Please note that sometimes we experience unusually high demand and run out of stock. If this happens and the item you ordered is back-ordered, you will be notified right away and offered an option to wait for the item to become available or to cancel your order.

If you choose to wait for the item, your card will be charged immediately. As a business, we can only keep credit card authorizations in our system for up to 7 days. If the card is not charged within 7 days, the order will be automatically canceled.


Shipment Tracking 

We will send you tracking information within 1 business day of your order leaving the warehouse to the e-mail address you provided when checking out.

If you do not receive tracking information from us within 8 business days of your order feel free to follow up with us at and make sure to include your order number.

We encourage you to track your package online or on the phone with the carrier. Most companies can provide an estimated delivery date. Be sure to contact us if anything seems unusual with the progress of the shipment.

 You can track your shipment here: Shipment Tracking 


Receiving Your Order 

FedEx and UPS Ground may not require a signature and will leave the package in a suitable place near your door if appropriate.

Please inspect the package immediately and report any damages to



In the unlikely event that an item you ordered arrives damaged, you will have 24 hours following the delivery date to report the issue in order to receive a replacement or a refund

You will not be responsible for the shipping costs to return or replace the item.

To report damage, take pictures of the damaged item and the box with shipping label clearly visible and email them to us: within 24 hours after delivery.

Trophy Optics cannot be held responsible for the cost of repairs or replacement of damaged items if the damage was reported later than 24 hours after delivery.



An order may be canceled within 2 days of the order being place if it has not yet been shipped. To cancel an order please email

If your order has been shipped, a standard return procedure applies. Refunds will only be issued to the original credit card that was used when the order was placed. Orders cancelled after 2 business days from when the order was placed will be subject to a $20 cancellation fee. 


Missing Items

In the unlikely event your order is missing any items or parts, it is essential that you notify us within 24 hours of delivery. To report a missing item, please email

Trophy Optics will not be held responsible for any missing item claims received beyond 24 hours.


Warranty Information

While some products and brands do not qualify for returns, all of our products are covered by manufacturer’s warranties. Please refer to your product manual to learn more about its warranty coverage.

100% Best Price Guarantee

We work hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price than us within six months of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date we will refund the difference as well.

To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website, within six months from the date of your order and we will process the credit accordingly.

Our 100% Price Guarantee requirements:

- You must purchase the item from our website before requesting your Price Match Guarantee

- Promotions such as rebates and buy one, get one free offers are not eligible

- The item must be in stock on the competitors website

- The competitor must be an online store, they may not have a retail location

- The website can not be a discounter or auction website (ie; Amazon, eBay, overstock, etc..)

- The competitor must be an Authorized Retailer of the product in question

- The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax

Complete Manufacturer Warranty With Every Product

As an authorized retailer for all of our brands, every product purchased at Trophy Optics is covered under the manufacturer warranty.

For complete warranty details click here:

- Kowa

- Athlon

- Alpen

- Bresser

- MTC Optics


Ask a Question
  • Does the TSN 663M come with an eyepiece?

    The Kowa TSN 663M Spotting Scope is sold body only and does not include an eyepiece. However, Kowa offers a range of eyepieces that are compatible with the 663M depending on how you use your scope. 


    1. TE-9Z 20-60x Zoom Eyepiece 
    The 20-60x eyepiece is especially great for users who are interested in birdwatching or hunting. The 20-60x zoom magnification allows users to easily adjust the range and field of view for objects that are on the move. The lower range of magnification (20x) provides a larger field of view, which is ideal for spotting birds and other wildlife. The higher range of magnification (60x) is perfect for identifying and observing subjects in detail after you've spotted them. 

    2. TE-14WD 30x Wide Angle Eyepiece 
    The 30x fixed eyepiece provides a larger field of view and stunning clarity. Although the 30x eyepiece doesn't have the range or versatility that the 20-60x does, the wide-angle provides a larger field of view and crisp, clear images to identify many different birds or wildlife at once and observe them in excellent detail. 

    3. TE-17HD 25x Long Eye Relief Eyepiece
    The 25x long eye relief eyepiece is perfect for use with glasses. The long eye relief provides a buffer for those who wear glasses and cannot place their eye directly on the eyepiece, in turn allowing for a complete field of view despite the additional space between the eyepiece and the eye.

    -The Trophy Optics Team

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