MUHAN INC is a business that has manufactured over 500 kinds of watches since 2012. As we developed quartz, automatic, digital, etc. watches, we were not satisfied with the battery life that quartz watches had.

There is always a possibility of the battery dying in battery-powered wristwatches (Regardless of the date of purchase). And exchanging your battery every single time the battery runs out, is not healthy for the environment. We focused on the fact that we need an alternative to be able to use a watch every day, conveniently, and without worrying about the battery running out.

Solar-powered watches have been loved for a while. They are not only more eco-friendly than ordinary battery-powered watches, but they are available to use semi-permanently with sunlight. MUHAN INC has started developing the Scorpion Solar Watch in 2017 to increase the design and quality at a reasonable price. The first product was released in 2018, and the Scorpion Solar Watch V3 was finally released in 2021.

We gave in a lot of time and effort to release the highest quality wristwatch at an affordable price. The SP3357 VS was built with titanium, Swiss-made Luminous, and sapphire glass. Even though it is equipped with chronograph functions, the SP3357 V3 is less expensive than other watches out in the market.

Unlike quartz watches or automatics from other companies, Solar Watch V3 is powered by charging with light. It works by turning solar power or light into electricity, and the remaining electricity is stored in the secondary battery for later use. Since there’s no need to purchase a replacement battery, it’s convenient and efficient.

Charging just for 2 minutes under the light enables immediate usage and keeps it operating all-day-long. You can use it for 90 days with a full charge, and charging with periodic exposure to light allows for semi-permanent use. (Performance may decline if the battery discharges too often, so frequent charging is a must.)

The SP3357, developed with MUHAN INC’s technology, has a substantially low margin of time error than other automatic wristwatches. When comparing side by side with other pricy quartz wristwatches, the SP3357 shows an equivalent or an even lower margin of time error. At the same time, showing the best durability.

Titanium is incredibly durable and doesn’t rust. It has the merits of longer usage than other metal materials. Due to difficulties in processing, it’s mostly used for high-end products only, and is also utilized in artificial joints (as a ‘human-friendly’ material).

Aside from the watch body, 5-grade titanium has been applied to all parts of the: bezel, case, band, back, button, crown, and buckle. It weighs just half that of a standard metal watch, and is widely used in spacecraft, airplanes, and golf shafts too. The matt silver color also features a unique shade that only titanium can produce.

191g (0.42lb) << >> 97g (0.21lb)

Titanium’s Alluring Deep Charcoal Color

The exterior of the titanium watch similar to gunmetal evokes a modern and future-oriented sentiment and appears like a stainless steel watch of a slightly dark color. Also, the bezel part gilt with gloss strikes a special and sophisticated harmony with the gun gray color and is equipped with the functional aspect of complementing scratches as well.

The titanium metal band in a deep charcoal color unique to titanium displays different hues depending on the viewing angle and lighting, and its robust charm and exceptional tone will allow you to sense varying appeals.

 Scorpion Solar Watch V3 Scratch Test

The glass is made from Sapphire Dome Crystal, that has a greater hardness than mineral glass, preventing scratches even over prolonged use. (You’ve probably never seen a watch that’s scratch-free- even after being ran over by a car wheel or being scraped hard by a sharp object). The exceptional light penetrability also clearly displays markings and the second & minute hands.

It emits light in the state of absorbs light, not self-illumination.

The Swiss luminous feature is available on the minute and hour hands, and on the dail Swiss luminescence has been specially used to upgrade brightness, continuity, and readability. After the watch absorbs plenty of light, you can easily check the time in the dark indoors or at night. The luminescence doesn’t last permanently and fades away slowly.

The Scorpion Solar Watch V3 is equipped with a 50m 5 level air pressure waterproof technology. When the crown is completely locked in, we were able to confirm that there would be no issues at all if the user takes a light shower or goes for a swim. But, you have to make sure to dry your watch thoroughly before controlling the crown or its buttons.

SHINY WITH MATT BAND

The wide part on the center of the band is glossy, and the narrow parts on the sides are matt.

The models: SP3357M-BU, SP3357M-WH, SP3357M-BK utilize this type of band.

MATT BAND

Whole sections of the band are matt. The SP3357M-GY model utilizes this band.

• Note that you may also need to pay sales tax or VAT, depending on where you live. ​Check with your country’s policies as these rates vary. We cannot be held liable for any additional customs charges that may occur in your location.

MUHAN INC has designed, developed, and distributed wristwatches for 9 years from 2012 to 2021. Scorpion Solar Watch V3 newly released based on the evaluations and advice from supporters backing with great interest has been even more perfected than previous Scorpion Solar Watch products.

As of now, a 1-year inspection has been conducted with finished products and not the prototypes, and they are waiting to be produced in the factory. Once the campaign wraps up in success, manufacturing will start the right next day. Everything has been prepared to complete the delivery after 2 months, including the shipping time.

We ask for much interest and support from the backers.

2018 – 2019 Hong Kong Watch & Clock Fair

Warranty Period

: movement warranty (3 years) / 1-time battery warranty (7 years)

• Free Warranty : if there is an error in time (the maker will bear all costs)
• Free Repair : hands and index fallen out due to shock, waterproof defect, and other after-sales
• services occurred from carelessness in use
• (shipping fee is paid by the user)
• Paid Repair : glass damage, movement damage due to shock, and other damages occurred from carelessness in use (component cost and shipping fee are both paid by the user)
• After-sales service is unavailable if : warranty is not serviceable if the watch has been disassembled by the user or by another company. The watch’s band is expandable and cannot be restored of its condition or repaired.

Cautions for Use

• As watches are weak to magnets, leaving them together will lead to malfunctioning movement and may cause failures.
• Please take off the watch when engaging in exercises like golf and tennis and other tasks that impact the wrist.
• Frequent shock may damage the movement or lead to hands falling out.
• If you control the buttons while there’s water on the watch, moisture may get inside.
• Please make sure to control the buttons after drying.

Battery Warranty Provisions

• When the operating period is under 7 days or performance has declined substantially even with a full charge Charging is inoperative.
• It’s advisable to charge the Solar Watch at all times, and frequent discharges will lead to declining battery performance.
• If a delivered reward not yet opened or used has a problem in outer appearance, we will exchange it for a new product if you send us a photo via e-mail.
• The e-mail address you should send it to is as below: contact.muhan@gmail.com