Seiko Men's SKX781 "Orange Monster" Automatic Dive Watch

4.6 out of 5 stars 329 customer reviews

Available from these sellers.
  • Imported
  • 21-jewels automatic movement
  • Functions without a battery; winds automatically with the movement of your arms
  • One way rotating elapsed timing bezel; screw-down crown and case-back; strong Hardlex crystal
  • Stainless-steel case; orange dial; day-and-date functions
  • Water resistant to 660 feet (200 M): suitable for recreational scuba diving

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Product Description

The 21-jewel, automatic Seiko Men's "Orange Monster" Automatic Dive Watch winds itself with the motion of your wrist, so you'll never need to change the battery. It has a stainless steel case and features an orange dial with three-hand function, easy-to-read bar markers, and an English/Spanish day/date window at the three o'clock position. Additional features include a screw-down case and crown, a scratch-resistant Hardlex crystal, and a one-way rotating bezel that keeps track of elapsed time. With its Lumibrite hands, markers, and bezel, this watch is easy to read in both light and dark conditions. The watch secures to a durable, stainless-steel bracelet band. Designed for diving, this watch is water-tested to 200 meters. It meets ISO standards and is suitable for scuba diving.

This is an automatic mechanical watch. Automatic watches do not operate on batteries; instead, they are powered automatically by the movement of the wearer’s arm. If the main spring in your automatic watch is not wound sufficiently, timekeeping may become less accurate. In order to maintain accuracy, wear the watch for 8 hours or more per day, or manually wind the main spring by turning the crown. When not in use, automatic watches may be kept charged with an automatic watch winder – a watch storage unit which may be purchased separately.


From Humble beginnings, Kintaro Hattori’s Vision for Seiko has become reality. A consuming passion for excellence - imprinted in our Corporate DNA passed from generation to generation. Seiko, for 125 years committed to the art and science of time.

A culture of innovation connects a 19th century Tokyo clock shop with 20th century advances in timekeeping to an extraordinary 21st century "quiet revolution." Continually driven by dedication and passion, established a multitude of world’s first technologies… transforming the principles of timekeeping.

The first quartz wristwatch – changed the history of time.

The first Kinetic – marked a new era in quartz watch technology.

In 1969, Seiko Astron, the first quartz wristwatch - was introduced.

In an instant, Seiko exponentially improved the accuracy of wristwatches –And Seiko technology firmly established today’s standard in Olympic and sports timing.

1984, another celebrated first – Kinetic Technology – powered by body movement.

Kinetic – a quartz mechanism with unparalleled accuracy –the driving force behind more world’s firsts.

Kinetic Chronograph – the next generation of high performance timekeeping.

Kinetic Auto Relay – automatically resets to the correct time.

Kinetic Perpetual - combining the date perfect technology of perpetual calendar with the genius of Kinetic Auto Relay.

And now Kinetic Direct Drive – move, and the watch is powered automatically. Or hand wind it and see the power you are generating in real time.

In the realm of fine watches, time is measured by Seiko innovation – A heritage of dedication to the art and science of time.

  • Product Dimensions: 5.3 x 5.1 x 5.3 inches
  • Shipping Weight: 9.6 ounces
  • ASIN: B000EPLR2G
  • Item model number: SKX781
  • Date first available at October 2, 2001
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Amazon Best Sellers Rank: #24,605 in Watches (See Top 100 in Watches)
    • Average Customer Review:
      4.6 out of 5 stars 329 customer reviews

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    Product Specifications

    Watch Information
    Brand, Seller, or Collection Name Seiko Watches
    Model number SKX781
    Part Number SKX781
    Model Year 2013
    Item Shape Round
    Dial window material type Hardlex
    Display Type Analog
    Clasp Fold-Over Clasp with Safety
    Case material Stainless Steel
    Case diameter 42.5 millimeters
    Band Material Silver-Tone-Stainless-Steel
    Band length Mens
    Band width 21 millimeters
    Band Color Silver
    Dial color Orange
    Bezel material Silver-Tone-Stainless-Steel
    Bezel function Unidirectional
    Calendar Day and date
    Special features includes a seconds-hand, Water Resistant
    Item weight 7.04 Ounces
    Movement Automatic
    Water resistant depth 660 Feet

    Customer Questions & Answers

    Customer Reviews

    Top Customer Reviews

    Verified Purchase
    Bought the watch from Amazon Sunday evening and it arrived on Thursday evening with the 5-day delivery service. I've had it for a few days and I am extremely happy with it. I also own a Rolex Submariner, Breitling Chronomat, Omega Seamaster Chrono, Citizen Nighthawk, and some assorted Casios and Timexes. This Seiko automatic watch ranks just a hair below the $2000+ Swiss watches, but for under $200, it's an unbelievable value. The quality and workmanship are excellent for a price in this range. For example, the second and minute hands line up exactly with the hash marks; when the second hand hits 12, the minute hand is algined precisely with the minute hash mark. Wow, I've seen $1000 Swiss quartz watches that don't do that. The assembly of all the components look top notch. The rotating bezel has a precision feel and the click-stops align exactly with the hash marks on the dial. The alphanumeric markings, Lumbrite markers, and hands appear of high quality. Seiko's cost savings is in the omission of hacking of the second hand, but slight backwards pressure does stop it for setting the time. Also, the black-on-white day and date although easy to read appears to be imprinted on cheapy white plastic. The bracelet has solid stainless steel links, but the weight and chrome finish are slightly on the budget side. The watch appears to run fast by about 1 second each day, which is pretty good for a mechanical watch since I had a Timex quartz with an analog face that ran fast by about the same increment. I love the orange face and chrome bezel with recessed, black painted numerals and hash marks. The watch supplied by Amazon came with a Seiko box, instructions and warranty and does not appear to be a gray market watch. I saw the watch for cheaper on eBay but they were coming from overseas, so I paid a few bucks more from Amazon located in the US. All in all, I am very satisfied with this Seiko watch and Amazon service.
    3 Comments 119 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Verified Purchase
    Seiko's SKX781 "Orange Monster" is achieving cult status among automatic sports watch collectors and avid SCUBA divers. Along with a similar style in black, Model SKX 779 (Black Monster) and the 300 lucky owners who collected a limited edition "Yellow Monster" some years ago - Seiko has produced a classic sports watch for the ages.

    Even those who collect automatic sports watches or chronographs that cost into 4 figures view this watch as a MUST HAVE for their collections (along with the Invicta Pro series dive watches). Like my commuter car Toyota RAV4 - a "beater" for everyday travel to the office - a "beater" watch with style, elegance, color and practicality for $200 or less is a rare find. This is a watch that makes a clear statement on your wrist!

    As an avid SCUBA diver - a water resistant watch to 660 feet is almost a standard when looking for dive watch purchase features. When the stainless steel band has a triple lock, a deployment clasp for wetsuit, softly rounded comfortable links coupled to a massive free uni-directioinal rotating bezel - most of us take notice. Combined with a "flamethrower" glow in the dark dial - beautiful orange face and overall massive sculpted stainless steel case - you have a winner.

    The WOW factor on this time piece is way up there. This watch is not Seiko of America standard stockage - but must be dealer ordered from Seiko Japan or Gray market wholesaled from Japan or Singapore dealers. It is also made for the China and Far East Market from a Seiko factory in Singapore. Both Japanese and Singapore factories turn out highest quality timepieces. Amazon's vendor sponsor - where I bought my watch - charges a fair price and has provided excellent service (sent me the Japanese factory made model).
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    4 Comments 105 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    From the moment you first hold this watch in your hand, you realize it is a quality timepiece. The first thing that strikes you is its large size and heavy feel, yet despite that, it feels comfortable on the wrist due to its fine balance.

    The bracelet end links (those that attach to the watch case) are solid rather than formed sheet metal like you will find on most other watches in this price range. The pins holding the bracelet to the watch are the sturdiest I have ever seen. Each of the bracelet's subsequent links is also made from a solid piece of steel, not folded sheet, each component being feather-edged to prevent it digging into the wrist. Its removable link pins are of an unusual machined pin and collar design which, though fiddly to remove and replace, nevertheless ensure that the pins remain under-flush and secure when correctly installed. The bracelet is perfectly flush on the side that contacts your wrist making it feel very smooth during wear.
    The clasp is very high quality, having both a fold over security buckle, which deploys with a satisfying click, and an Omega style double button catch. The security buckle closes onto a spring pin whose ends are spherical thus ensuring a tight fastening which should not wear with use. All in all these features add up to a watch that is very quiet on the wrist, the only faint sound coming from its automatic winding mechanism.
    Finally the bracelet incorporates a clever hidden diver's extension (to allow the watch to be worn over a wet suit).

    The watch case, back and bezel are made from stainless steel. The case has an attractive mix of polished, brushed and machined finishes which all add to the feel of quality and function.
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