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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →The 40.5 mm Czapek Antarctique Polar Sky and Flying Diamonds share a steel case, dark blue aventurine-glass dial and SXH5 automatic movement. Their defining difference is the hour markers: Polar Sky has conventional markers, while Flying Diamonds uses Antarctique-cut diamond indexes. Czapek’s product sheets list the watches at CHF 26,000 and CHF 42,800 before taxes, respectively.
How the dials differ
Polar Sky: aventurine with conventional markers
Polar Sky pairs a dark blue aventurine-glass dial with conventional hour markers. Czapek describes aventurine as a material that evokes the night sky; the effect is decorative, but the model retains standard markers rather than adding gemstones to the indexes. Czapek’s Antarctique collection overview
Flying Diamonds: diamond indexes
Flying Diamonds uses the same dark blue aventurine-glass dial, but replaces the conventional markers with Antarctique-cut diamond indexes. Czapek specifies a total of 0.585 carats of diamonds for the indexes. The choice is therefore chiefly one of dial ornament, not a different case or movement.
Shared case and movement
Both official 40.5 mm product sheets specify a stainless-steel case measuring 40.5 mm in diameter and 10.6 mm high, with a screwed-down crown and 120 m water resistance. Those are manufacturer specifications, not independent test results.
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- 【Full Skeleton Open - Design for Watch Enthusiasts】 This all - open skeleton watch is a dream come true for watch lovers. You can watch the intricate mechanical gears spin in real - time, a sight that's sure to captivate at business meetings, weekend get - togethers, or while you're out on a casual stroll. It's not just a watch; it's a wearable piece of art that showcases classic mechanical craftsmanship.
- 【Pre - Calibrated Automatic Movement for Any Occasion】 Every movement is pre - calibrated before shipping, ensuring accurate timekeeping (within ±20 seconds a day, meeting industry standards for mechanical watches). Whether you're in a high - pressure business environment, on a relaxing vacation, or just going about your daily routine, this self - winding watch powered by the swing of your wrist has got you covered. No need to worry about batteries; it's ready for whatever your day brings.
- 【Tough Stainless Steel Build for Versatile Use】 Crafted from durable 304 stainless steel, this watch is scratch - resistant, rust - proof, and comfortable for all - day wear. Its sporty design with blue accent markings makes it a perfect fit for outdoor activities like hiking or running, as well as for formal business presentations. It transitions seamlessly from the boardroom to the basketball court.
- 【Daily Waterproof (30M) for Everyday Scenarios】 With a 30M waterproof rating, it's safe for handwashing, sudden rain showers, or accidental splashes during your daily activities. However, for swimming in the pool or taking a shower, it's best to keep it dry to protect the delicate movement. This watch is designed to handle the minor water encounters of your everyday life.
- 【Ideal Gift Choice】 Packaged in an elegant gift box, this skeleton mechanical watch is a perfect gift for fathers, boyfriends, or watch lovers on birthdays, anniversaries, or holidays. We offer 24/9 customer support.
Each watch is powered by Czapek’s SXH5 self-winding mechanical caliber. The product sheets give a 60-hour power reserve, 4 Hz frequency, 193 parts and 28 jewels. The movement uses a micro-rotor made of recycled platinum. Czapek identifies the SXH5 as its first movement entirely conceived in-house in its collection overview.
Bracelet and strap options
The product sheets describe an integrated steel bracelet with an Easy Release system and micro-adjustment, and list additional calf-leather or rubber straps. Czapek’s collection overview describes the bracelet links as forming a polished “C” motif and explains the quick-change strap system. The published specifications do not establish how either watch feels on the wrist or how the dial reads in different lighting.
Rank #2
- Sleek Everyday Design – A refined take on our best-seller, the Medium Time Teller features a timeless, numberless dial and a slightly smaller 31mm case, perfect for effortless daily wear.
- Durable Stainless Steel Build – Crafted with a solid stainless steel case and hardened mineral crystal, this watch is built to last. Water-resistant up to 100 meters (10 ATM), it’s ready for swim sessions and unexpected splashes.
- Comfortable & Secure Fit – Equipped with a custom 5-link stainless steel jewelry-style bracelet and an adjustable sliding buckle for a snug, secure fit that blends elegance with practicality.
- Precision Japanese Movement – Powered by reliable Miyota Japanese quartz 3-hand movement, with applied indices and custom-molded hands for clean, easy time-telling.
- Versatile Size & Fit – Features a 16mm tapered band with spring bar connection and a stainless steel locking clasp, making it a go-to accessory for any wrist or occasion.
Price and edition quantities
| Model | Official listed price | Quantity on Czapek product sheet |
|---|---|---|
| Antarctique Polar Sky 40.5 mm | CHF 26,000 before taxes | 99 pieces |
| Antarctique Flying Diamonds 40.5 mm | CHF 42,800 before taxes | 18 pieces |
These figures come from Czapek’s product sheets accessed in 2026; the listed prices are before tax and do not guarantee current pricing in a particular country or current stock. The CHF 16,800 difference buys the diamond-index treatment, while the manufacturer sheets list fewer Flying Diamonds pieces. For a current regional price, check Czapek or an authorized dealer.
There is a published discrepancy in the Flying Diamonds quantity: Czapek’s product sheet lists 18 pieces, while Fratello’s 2024 launch coverage reported eight for the 40.5 mm variant. The sources do not resolve that difference, so the official-sheet figure should be understood as what Czapek’s sheet lists, not as an independently reconciled launch total. Fratello’s planned Q4 2025 delivery date is historical, not a current availability indicator. Fratello’s 2024 introduction
Rank #3
- Durable Titanium Build: Crafted entirely from titanium, including the case and case back, ensuring strength and lightweight comfort for any adventure.
- Compact 38mm Design: Features a 38mm sandblasted titanium case, catering to the trend of smaller watch sizes, perfect for explorers.
- Premium Materials: Domed sapphire crystal and bar-shaped glass tube lume provide superior clarity and luminous performance.
- Reliable Seiko NH35 Movement: Powered by the mechanical automatic Seiko NH35 movement with a 3-hand calendar display and hacking feature.
- 100M Water Resistance: Equipped with a screw-down crown and 100-meter water resistance for all your outdoor activities.
What is known about availability
Czapek’s online finder currently labels an Antarctique Flying Diamonds S as sold out, but that listing does not establish the stock status of the 40.5 mm Flying Diamonds. The finder also lists Polar Sky references; a collection or reference listing is not proof that a particular watch is presently available. Confirm the exact reference and region with Czapek or an authorized dealer. Czapek’s retailer and availability finder
Quick Recap
Best Value
- 8 inch black strap
- 43mm round case
- Black dial
- Sapphire lens
- Water resistant up to 100 meters
Rank #4
- UNIQUE JEWELRY-INSPIRED DESIGN – The Eddy stands apart with a one-of-a-kind connection between the stainless steel case and bracelet, creating a seamless, elevated look inspired by fine jewelry.
- JAPANESE QUARTZ PRECISION – Powered by a Miyota 5Y30 Japanese 3-hand quartz movement for dependable, accurate timekeeping with minimal maintenance.
- CLEAN, REFINED DIAL DETAILS – Features applied stick indices at the 12, 3, 6, and 9 o’clock positions, stamped stick indices throughout the rest of the dial, and custom molded hands for a balanced, modern look.
- DURABLE STAINLESS STEEL CASE – Built with a solid 24mm stainless steel case, hardened mineral crystal, and a 100 meter / 10 ATM water rating for confident everyday wear.
- SLEEK 5-LINK STEEL BRACELET – Finished with a 12mm stainless steel 5-link bracelet and secure butterfly clasp, offering a streamlined fit and polished appearance.
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.
