The Breitling Chronomat Automatic GMT 40 is a 40 mm automatic sports watch with a 24-hour GMT display for tracking a second time zone. The specific US reference covered here, P32398101C1S1, pairs a stainless-steel and platinum case with a black rubber strap; Breitling lists a price of USD 8,750 before sales tax on its US product page captured October 5, 2026. Other references have different configurations and regional prices.
What the Chronomat Automatic GMT 40 does
Breitling equips the Chronomat Automatic GMT 40 with Caliber 32, a self-winding mechanical movement whose 24-hour display is intended to show a second time zone. The brand describes a red GMT hand working against a tone-on-tone 24-hour scale, allowing the wearer to read that zone and distinguish day from night. These are Breitling’s descriptions of the design and function, not independent test findings. The US product page for reference P32398101C1S1 lists an approximate 42-hour power reserve, 28,800 vibrations per hour and 21 jewels.
For winding, setting and operating the watch, use Breitling’s Chronomat Automatic GMT 40 instructions for use. The product page alone is not a substitute for the reference-specific operating instructions.
Specifications for reference P32398101C1S1
| Specification | Breitling-listed detail |
|---|---|
| Movement | Breitling 32, self-winding mechanical |
| Function | Second time zone with 24-hour display |
| Power reserve | Approximately 42 hours |
| Frequency and jewels | 28,800 vibrations per hour; 21 jewels |
| Case | Stainless steel and platinum |
| Caseback | Screwed-in sapphire |
| Bezel | Unidirectional ratcheted |
| Crown | Screw-locked, with two gaskets |
| Crystal | Cambered sapphire, glareproofed on both sides |
| Diameter and thickness | 40 mm; 11.77 mm |
| Lug width | 20 mm |
| Strap and clasp | Black rubber strap; folding clasp |
| Water resistance | 20 bars / 200 m / 660 ft |
Breitling’s 200 m rating is the manufacturer’s stated specification. It does not, by itself, establish that every water activity is suitable or that a particular watch remains water-resistant; condition and maintenance matter. Breitling also calls the crown an “onion” crown, referring to its fluted, domed shape.
#1 Best Overall
- Breitling Chronomat B01 42 Chronograph Automatic Men's Watch AB0134101K1A1
Configurations vary by reference
Do not treat “Chronomat Automatic GMT 40” as a single fixed materials-and-strap configuration. The US-listed P32398101C1S1 has the stainless-steel and platinum case and black rubber strap described above. A separate Breitling listing, reference A32398A51L1A1, specifies a stainless-steel case and bracelet. See the Breitling page for reference A32398A51L1A1 for that configuration.
When comparing listings, begin with the complete reference number, then verify case material, dial, strap or bracelet, clasp, dimensions, movement and functions, water-resistance rating, local price and tax treatment, and warranty terms. A 20 mm lug width does not prove that a strap or bracelet from one reference is interchangeable with another; confirm the exact attachment and compatibility.
Rank #2
- Cambered sapphire, glareproofed both sides
- Signature 'Rouleaux” bracelet
- Power reserve approx. 70 hrs
- Watch movement type: Breitling 01 (Manufacture) automatic-self-wind
- Band color: silver and gold
Price and warranty depend on market
Breitling’s US page for reference P32398101C1S1 listed USD 8,750 excluding sales tax in a page capture dated October 5, 2026. The UK page for the same reference listed GBP 7,200 including VAT in a page capture on that date. These are regional, time-sensitive retail prices, not a global price or resale valuation; confirm the live listing and tax treatment for your location. The UK product page and US product page are the relevant references.
The US product page states a two-year international warranty and says online registration can extend it by up to two years. Check the terms applying in your market and confirm coverage with the seller, particularly when buying outside Breitling’s own store.
Rank #3
- Breitling Superocean 42mm Heritage B20 Automatic Blue Dial Watch UB2010161C1S1
Who this model may suit
The watch’s core appeal is the combination of a second-time-zone display, automatic movement and 40 mm case size, with reference-specific material and strap choices. Breitling positions the Chronomat as a travel-oriented sports watch; that is the manufacturer’s framing, not an independent wear assessment. No hands-on test is presented here, so fit, comfort and legibility on your wrist are matters to assess in person or through a return policy.
Quick Recap
Best Value
- Rubber watch strap soft and dust-resistant , comes with a quality stainless steel buckle, which is made of stainless steel.
- Please measure the width of your watch lug before ordering. It is important that your watch's lug width is the exact width of the band you select.
- Softness is moderate, wear very comfortable,Compression molding, sturdy and ,Wearable strap/wrist strap,suitable for original watch.
- Comfortable Fit: Soft, skin - friendly rubber conforms to wrist curves. Multiple adjustment holes ensure a perfect fit for all wrist sizes, offering stable, non - tight wear.
- Easy to insert and remove,very suitable for your watch.
Rank #4
- Polished Stainless Steel Case and Bracelet, Case Diameter: 44mm
- Blue Dial with Index Hour Markers
- Breitling Caliber B20
- Self-winding Automatic Movement, COSC Chronometer Certified
- 200 Meters / 660 Feet Water-Resistant
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.
