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​Returns :

 is the only thing that is eternal in the universe, but without time  , nothing changes.   (∆t) standards for the different between two different points in time, Time 1 (t1) and Time 2 (t2). In equation, we write 
∆t = t2 - t1
, which, on the other hand, denotes the change of time.

Watch is one of the greatest inventions of human kind. Without it, civilization could never become so advanced. It is the instrument of measuring the change of time (∆t), and that’s why we named ourselves  .

At  , we not only produce high quality watches with reasonable prices, we produce watches with special characteristics. Every watch from   is so unique that it may also be considered as a piece of art.


Mechanical Miyota Automatic


Multicoloured carbon case
3-Dimensional index in Red and White. 
Open view on the back case
Date indicator at 3' 
24-hour counter at 9'
Custom cut Sapphire crystal with anti-glare coating on top.
Superluminova on minute hand. 
Rotating "second-hand" disc with multicoloured skull in the centre. 
52mm diameter (excluding crown)
15mm thickness
Red or Purple silicon strap and leather strap
Weight = Approximately 170g (Slightly less than an iPhone 6 Plus @ 200g)


Up to 100m


100 pieces with individually engraved numbers on backcase. 

​We Accept

Retrowerk watches German craftsmanship, Swiss mechanical movements and very artistic; that’s Retrowerk. With his historical look, a Retrowerk watch is really like an antique divers watch. Buy here your Retrowerk watch! We are an official Retrowerk dealer.

​International orders add $30.00 shipping


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Aeromatic watches and chronographs are intended for only the most daring of watch enthusiasts - People who want to stand out of the pack with a heap of horological steel on their arm.  Their style is matched by the quality German precision.


All warranty issues are to be handled directly with the watch manufacturer. Customer agrees to hold Seventy Seven Watches.Com harmless for any warranty claims with the manufacturer.

The Manufacturer's warranty does not cover:

battery, crystal, strap or bracelet
damage resulting from improper handling, lack of care, accidents or normal wear and tear
water damage.

This warranty is void if the watch has been damaged by accident, negligence, unauthorized service or other factors not due to defects in materials or workmanship. 


2 Year Warranty on Delta​t

Affordable Automatic Watches


If you are not satisfied with your purchase, you may return it for a refund (excluding shipping and handling charges) within 14 days from shipping from our warehouse, subject to a Return Merchandise Authorization from Remember, the cost of shipping will be deducted from your total refund. A return merchandise authorization number can be requested by clicking on the Return Request Form,  All purchases, accessories, serial numbered security tags (if provided), and packing materials must be in new condition to avoid refusal of the returned merchandise or restocking fees. All returned or exchanged items must be in new condition, in their original packaging, and must include all packing material, blank warranty cards, manuals, and accessories. ANY SIGNS OF WEAR OR REMOVAL OF PARTS, WILL RESULT IN REFUSAL OF YOUR RETURN.

If when you receive your purchase, there are any noticeable discrepancies or damages, or if the item is not what was ordered, please contact within 5 days of receipt of your shipment to make the necessary corrections.


In order to return an item you need to first obtain an RMA (Return Merchandise Authorization) number. To request an RMA number online, please go to the Return Request Form. Issuance of an RMA number does not guarantee final disposition and all returns are subject to inspection. RMA numbers are valid for ten days.

Place the original package into a shipping carton.
Include the invoice and the reason for the return. If defective, please specify the defect.
Please do not place stickers or shipping labels on the original manufacturer’s package.
The RMA number must be clearly written on the shipping carton to prevent refusal.
We suggest that you send your item(s) via insured, traceable means, such as UPS. Return shipping charges are the responsibility of the customer. We are not responsible for lost or damaged packages.
If an order is shipping via ground shipping, the initial shipment fee incurred by to ship the merchandise will be deducted from the refunded amount.

100% Authentic Watches

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