Recommended Free Tools
The Oris Big Crown X1 Calculator is an archived 46 mm watch distinguished by a slide rule around its dial. Oris says it launched in 2011 with 30-metre water resistance after the company reworked the design to address water-resistance problems in slide-rule watches. The model is no longer presented as a current collection watch, so the price displayed on Oris’s archived listing should not be treated as a current offer.
What is the Oris Big Crown X1 Calculator?
The Big Crown X1 Calculator is a large Oris watch with a circular slide rule integrated into the top ring and inner rehaut. A slide rule is a set of logarithmic scales: when the scales are rotated into alignment, they can be used for calculations such as multiplication, division and conversions. It is a mechanical calculation aid, not an electronic calculator.
Oris’s archived US collection identifies the model as 46.00 mm. Its archived result displays USD 3,950, but that listing does not establish current stock or a current transaction price. Oris archived collection
How the X1’s slide rule fits the design
Oris describes the watch’s defining feature simply: “The X1 Calculator has a slide rule top ring.” The rotating scale sits around the dial rather than on a separate handheld tool, giving the watch its calculator-like appearance while preserving the layout of a wristwatch.
#1 Best Overall
- 8-Digit Calculator; Constants for addition, subtraction, multiplication and division
- Water Resistant
- 1/100 second stopwatch; Measuring capacity: 23:59'59.99"; Measuring modes: Elapsed time, split time, 1st-2nd place times
- Auto Calendar (pre-programmed until the year 2079)
- Size of case/total weight; 42.0 x 33.0 x 7.0mm / 29g
Oris’s 2014 110-year brochure explains that early designs encountered water-resistance problems, prompting a redesign. The company says the X1 Calculator launched in 2011 with 30-metre water resistance. Oris 110-year brochure
Specifications reported for the model
The detailed reference-level specifications below come from a retailer listing for reference 675 7648 4264 7 5 2377, not a model-specific official specification sheet. Treat them as listing-reported details and confirm them against the particular watch and its documentation.
Rank #2
- 8-Digit Calculator, Constants for addition, subtraction, multiplication and division
- Water Resistant (hand washing or splashes of water only, not suitable for swimming, diving or submerging in water)
- Dual Time, Daily Alarm, Hourly Time Signal, Auto Calendar
- Battery CR2016, Approx. battery life: 5 years
- Size of case/total weight 42. 0 x 33. 0 x 8. 40mm / 29g
| Detail | Retailer-reported information |
|---|---|
| Reference | 675 7648 4264 7 5 2377 |
| Case | 46 mm grey PVD-coated steel |
| Movement | Automatic Oris Calibre 675, based on ETA 7750 |
| Functions | Chronograph and slide rule on the inner rehaut |
| Dial | Black |
| Crystal | Sapphire with anti-reflective coating |
| Crown | Screw-down |
| Strap | Leather |
| Water resistance | 30 m |
The 30 m rating is a stated specification, not sufficient evidence by itself that a particular example is suitable for swimming or diving. Oris’s cited history gives the rating but does not provide use guidance for this exact watch.
Is the Oris Big Crown X1 Calculator still available?
Oris places the model in its archived collection. That confirms it is an archived model, not whether any retailer or private seller currently has one available. The USD 3,950 shown in the archived result is likewise not a verified current retail or secondhand price. Ask sellers for the exact reference and a current, itemized quote rather than relying on the archive figure.
Rank #3
- Kid watches: square wrist watch calculator: this wristwatch is who want to some style to their outfits while also being able to perform mathematical calculations with ease. the square design gives it a modern look that will impress all their friends.
- Toy: 【classic pocket watch】: roman numerals scale, very special; heavily engraved front and back with exquisite patterns, vintage appearance design, really good as a fashion accessory.
- Watches for kid girl: 🎁 for adults, boys, and : this set includes two watches, making it a great for couples, siblings, or friends. the sleek and modern design makes it a stylish accessory for anyone.
- Exercise watch: 【setting time】: pull the crown from the base of the watch and turn the crown clockwise until reaching the exact time, then press the crown back to its original position.
- First: watch is durable and sturdy to use for a long time.
What to check before buying a pre-owned example
Because the model is archived, a buyer may encounter it through secondhand listings. Evaluate the individual watch rather than assuming every example has the same condition, provenance or accessories.
- Confirm the reference number and compare it with clear photographs of the dial, case, caseback and movement documentation where available.
- Request service records and ask what work was completed and when.
- Ask what authenticity documentation, box, papers and other accessories are included; do not assume these come with every listing.
- Get a written description of the condition, including the case finish, crystal, strap, chronograph operation and slide-rule markings.
- Clarify return terms and whether the seller has checked water resistance. A historical or listed rating does not establish the present condition of a decades-old watch.
The retailer listing reports sapphire crystal, but buyers should verify the crystal on the actual watch. Oris’s general manual discusses care for Plexi/acrylic on some watches; that general guidance does not establish that this reference uses Plexi.
Rank #4
- 8-Digit Calculator & Currency Conversion: Equipped with a convenient 10-key pad for arithmetic operations and currency conversions, making this watch a versatile tool for everyday tasks.
- Multi-Lingual Data Bank: Store up to 25 sets of data, including names and phone numbers, with support for 13 languages, ensuring global functionality.
- Dual Time Display: Effortlessly keep track of time in two cities at once, perfect for travelers and professionals.
- LED Backlight with Afterglow: Amber LED light ensures visibility in low-light conditions, with an auto-light switch for hands-free illumination.
- 5 Multi-Function Alarms: Set up to five alarms with options for daily, date-specific, or monthly reminders, plus a snooze alarm for added flexibility.
Who is the X1 Calculator for?
The X1 is most compelling for someone who wants an unusual, oversized Oris with an integrated slide rule and chronograph styling. Its 46 mm case is a substantial fit, and its archived status makes condition, service history and seller documentation central parts of the purchase decision. Anyone comparing it with alternatives should check actual case dimensions, movement, slide-rule layout, serviceability and the full cost of the specific example; no direct competitor specifications are established here.
Quick Recap
Best Value
- Movement:Quartz
- Case Thickness (mm.):9 mm
- Case Width (mm.):34
- Clasp:Buckle
- Case Height (mm.):43
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.
