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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The Shinola Circadian Monster is a 36mm automatic take on the brand’s Monster design. Retail listings describe a slim 9.25mm case, a Swiss Sellita SW200-1 movement and 10 ATM water resistance, but the details vary by dial and finish. This overview compares three listed versions and explains what the published specifications—and the absence of direct wear testing—can tell you before buying.
What the Circadian Monster is
Shinola describes the Circadian as a 36mm automatic that refines the Monster design. Its collection page used the phrase “A 36mm automatic powered by the rhythm of day and night,” but showed no products when accessed. That does not establish that the watch is unavailable: third-party listings for several variants were present.
The available specifications come from manufacturer and retailer product descriptions, not independent testing. They can help compare configurations, but they do not establish how the watch feels on a particular wrist, how accurately it runs, or how it performs in water.
How the listed variants compare
The following details are specific to the listings accessed in 2026. Retail prices and availability may change.
#1 Best Overall
- Round watch featuring corrugated unidirectional bezel, luminous hands/markers, and magnified date window at 3 o'clock
- 40 mm, Length: 210mm, 23k gold-plated stainless steel case with mineral dial window. Movement Caliber: NH35A
- Japanese automatic movement with analog display
- Gold & Stainless steel tone bracelet with foldover clasp with safety closure
- Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving.
| Variant and source | Case | Movement and reserve | Crystal and water rating | Band and other listed details | Price shown |
|---|---|---|---|---|---|
| Black enamel dial, polished PVD gold stainless-steel case (Watches.com, SKU S0120307656) | 36mm; 9.25mm thick | Swiss-made Sellita SW200-1 automatic; reserve not stated in this listing | Double-curve sapphire; 10 ATM | Stainless-steel bracelet; screw-down crown | $1,795 |
| Cream dial, polished stainless-steel case (Watches.com, SKU S0120299740) | 36mm; 9.25mm thick | SW200-1 automatic; reserve not stated in this listing | Double-curve sapphire with anti-reflective coating; 10 ATM | Stainless-steel bracelet; 18mm quick-release strap width listed | $1,695 |
| Mother-of-pearl dial (Nordstrom) | 36mm; 9.25mm deep | Swiss SW200-1 automatic; 38-hour power reserve stated by Nordstrom | Sapphire; 10 ATM/100 meters | 18mm band width; date window, Super-LumiNova hands and markers, screw-down exhibition caseback | $1,795 |
Sources: Watches.com black-and-gold listing, Watches.com cream listing and Nordstrom mother-of-pearl listing. The 38-hour reserve is Nordstrom’s specification for its listed mother-of-pearl version; it is not an independent measurement and should not be assumed for every configuration.
What the dimensions and specifications tell you
Case size and thickness
A 36mm diameter and 9.25mm thickness give a useful starting point for judging proportions, especially if you prefer a smaller-diameter watch. Those numbers alone cannot establish how it will wear: lug-to-lug length, wrist shape, bracelet fit and personal preference also matter, and those details are not established by the cited listings.
Rank #2
- Stainless steel case 40mm diameter x 14mm thick; Exhibition case back; Black dial; Luminous hands and hour markers
- NH35A Japanese Automatic movement, 24 jewel; Assembled in Malaysia; Watch weight: 155 grams
- Stainless steel band, 210mm L x 20mm W; Band is adjustable by adding/removing links; Fold over safety clasp
- Mineral crystal; Screw-down crown; Diver stainless steel bezel with black top bezel ring; 200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving.
Movement and power reserve
The listings identify the movement as a Sellita SW200-1 automatic. Nordstrom states a 38-hour power reserve for its mother-of-pearl version; the two Watches.com listings do not state a reserve. No independent accuracy or performance measurements are available here.
Water resistance and crystal
The cited listings give the variants a 10 ATM rating, and Nordstrom also expresses its mother-of-pearl version’s rating as 100 meters. A rating is a published specification, not evidence of real-world water testing or a guarantee of suitability for a particular activity. The listings identify sapphire crystals; the cream version is specifically described as having anti-reflective coating.
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Rank #3
- [Luxurious Mechanical Watch] High quality hollow mechanical watch appearance retro gorgeous, exquisite carving and design of the golden appearance of the European nobility more highlight your noble identity extraordinary taste, to bring you a pleasant luxury experience
- [Mechanical Movement] This watch has manual self-winding. Please consider that mechanical watches that require manual winding can only keep time for a short time after winding. To prevent running or inaccurate time, it is advised that you verify the time periodically and wind up the chain 15–20 times.
- [Waterproof] Water resistant to 50m (165ft) -suitable for short periods of recreational swimming and showering, but not diving or snorkeling
- [Ideal as a Gift] This beautiful retro-style watch can be worn on any occasion or given as a gift to your father, brother, partner, or boyfriend. At weddings and any holiday gatherings, it can be a really appreciated and elegant gift.
- [Professional After-Sale Service] Please contact us if you need any additional details about our watches. We will be happy to answer and help you anytime.
Price and availability are listing snapshots
At the time the pages were accessed in 2026, Watches.com listed the cream version at $1,695 and the black-and-gold version at $1,795; Nordstrom listed the mother-of-pearl version at $1,795. These are retailer page prices, not evidence of a fixed or current MSRP. Check the exact variant, price and stock status with the seller before purchase. Shinola’s collection page showed no products when accessed, while retailer listings were available.
Service and warranty considerations
Shinola’s current service page recommends factory watch service every five to seven years for quartz and mechanical watches. The company says the service includes inspection of critical components, movement service, replacement of wear items as needed, performance testing and restoration of water resistance when applicable. Qualifying factory service carries a two-year guarantee limited to the work performed and parts replaced. See Shinola’s warranty and repair information.
Rank #4
- Capturing the daring style of Marc Anthony, one of music’s most influential artists, Bulova presents the all-new Marc Anthony Series A.
- The bold, angular silver-tone stainless steel case features brushed finishing with polished accents, a silver-tone bezel with grey accents, a flat mineral crystal, and a screw-down crown. The stunningly vibrant blue dial combines sunray texture along the hour track and a central dial with a radiant sunburst finish, complete with hands with luminescent treatment, polished indices, and a grey running seconds sub-dial.
- The dial is further accented with diamond hour markers at 1, 3, and 5 o’clock, chosen by Marc for their personal significance. Visible through both the dial aperture and an exhibition case back, the open heartbeat automatic movement features 21 jewels and a 42-hour power reserve.
- The 44mm watch has 200m of water resistance and is complemented with a matching silver-tone stainless steel bracelet with a push-button deployant clasp. Uniting Marc Anthony’s iconic music with Bulova’s proprietary technology and Bold at Heart spirit, this new men’s timepiece will keep you always within style’s rhythm.
- 200M Water Resistant and 3 Year Limited Warranty
Do not assume a particular Circadian Monster has lifetime coverage. Shinola also publishes a separate automatic limited-lifetime-service-warranty page for original-series automatic watches, with conditions and exclusions that include straps and bracelets, PVD plating, water damage, normal wear or accidental damage, and a movement beyond a five-year natural movement life. That page requires registration and says non-Shinola repair, service or engraving can void coverage. Shinola’s current general warranty page notes that purchases made before October 1, 2026 may have different terms. Confirm the terms that apply to the specific watch and its purchase date directly with Shinola before relying on coverage. See the automatic limited-lifetime-service-warranty terms.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What a buyer can—and cannot—conclude
On paper, the Circadian Monster offers a compact 36mm case, a 9.25mm listed thickness and an automatic movement across the cited variants. The choice among them is primarily about dial and finish, with some specification differences: the cream listing names anti-reflective coating and quick-release strap width, while Nordstrom’s mother-of-pearl listing states a 38-hour reserve, date window, luminous hands and markers, and exhibition caseback.
Best Value
- ⌚【Design Inspiration】This is an all-steel octagonal design with the characteristics of a classic sports adventure watch. The shape is exquisite and exquisite. Through amazing proportions, high-tech materials, and anti-magnetic structure,You can see the precise operation of each mechanical part, its unique masculine beauty injects new blood into the sports watch.
- ⌚【Unique Octagonal Design】The front of the octagonal bezel is polished with a polished and brushed process, which is resistant to scratches and presents two different metallic textures. The most classic and legendary aesthetic design has finally conquered the world as the ultimate octagonal case of sporty elegance. The 1.61inch large dial with high quality stainless steel watch band makes the watch more durable. The total length of the watch is 8.26inch.
- ⌚【Mechanical Movement】NO need to use BATTERY, but AUTOMATICE SELF-WINDING! The back of the watch adopts a back-through design, through the sapphire glass back we can clearly observe the movement beauty of the movement.The watch is equipped with a stainless steel bracelet that is comfortable to wear and has a very elegant posture. The whole is meticulously polished to bring a more refined wearing experience.
- ⌚【30M Waterproof】Daily life waterproof design which bear daily wash hand, swear,accidental rain or water splash.Please keep it away from swimming and hot water bathing in case consume the watch.(Note! Mechanical watch is different from quartz watch. Insufficient mechanical kinetic energy will cause the watch to stop, please winding it in time.)
- ⌚【Perfect Gifts】With a independently designed FORSINING watch box, is the perfect gift for yourselves or for that special and important someone. The fashion design watch can be easily matched with a variety of clothing and suitable for all occasions.
These listings do not establish wrist comfort, bracelet articulation or clasp security, actual movement accuracy, lume duration, or practical diving performance. Anyone weighing the watch as a personal fit or as a tool for a specific water activity should seek direct hands-on assessment and verify the manufacturer’s guidance rather than treating listing specifications as test results.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
