Breitling · Superocean and Superocean Heritage
Breitling A17375211B1S1 vs Breitling AB0156161C1S1
10 published specifications differ between these two, and 8 are identical. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.
What differs
| Specification | ||
|---|---|---|
| Thickness | 12.56 mm | 14.55 mm |
| Lug width | 22 mm | 22.05 mm |
| Water resistance | 30 bars (300 m / 990 ft) | 20 bars (200 m / 660 ft) |
| Dial | Black, as stated in the page description | Blue, as stated in the page description |
| Case back | Screwed in | Screwed in (sapphire crystal) |
| Bracelet | Rubber strap, black, straight, 22/18 mm | Rubber strap, blue, straight, 22/18 mm |
| Calibre | Breitling 17 | Breitling 01 (Manufacture) |
| Power reserve | Approximately 38 hours | Approximately 70 hours |
| Jewels | 26 | 41 |
| Movement notes | No chronograph or calendar complication is listed for this reference. | Chronograph to 1/4th second with a 30-minute totaliser. Calendar shown in a dial aperture. |
What is identical
Worth knowing as much as the differences: these are the specifications you cannot use to tell the two apart.
- Case
- Stainless steel, 42 mm
- Diameter
- 42 mm
- Crystal
- Cambered sapphire, glareproofed both sides
- Bezel
- Unidirectional, ratcheted
- Crown
- Screw-locked, two gaskets
- Clasp
- Stainless steel folding clasp, 18 mm
- Movement
- Self-winding mechanical
- Frequency
- 28,800 v.p.h
What the differences cost you
Each note below follows from the published figures in the tables above — what they mean for intake, for a listing, and for the handover. Nothing here estimates a price or a margin.
A visible difference in how they wear
2.0 mm of thickness separates these, with the AB0156161C1S1 the taller at 14.6 mm. That is the difference between a watch that goes under a cuff and one that catches on it — worth a photograph from the side rather than a number in a table.
Do not describe these the same way
300 metres on the A17375211B1S1 against 200 on the AB0156161C1S1. Both are more than daily life asks for, so the number is a listing-accuracy question rather than a practical one: quote each watch its own figure, and remember that neither rating survives an unserviced case by itself.
One survives the weekend and one does not
70 hours on the AB0156161C1S1 against 38 on the A17375211B1S1. Below about sixty hours a watch left off the wrist from Friday is stopped by Monday. Wind both fully at intake and confirm they reach the stated figure — a short reserve leaves a tired barrel nowhere to hide, and it is the kind of fault a buyer reports in week two.
Different movements to verify and to service
The A17375211B1S1 runs the Breitling 17 and the AB0156161C1S1 the Breitling 01 (Manufacture). Two consequences at intake: the service history that is normal for one calibre is not evidence about the other, and the calibre is the check that catches a movement swapped into the wrong case. Confirm the movement matches the reference rather than assuming it from the dial.
What to check on each
A17375211B1S1
- Count the bezel clicks through a full turn and confirm it will not move clockwise at all. A dive bezel that can run backwards can understate elapsed time, which is the one failure mode the unidirectional design exists to prevent.
- Seat and unseat the screw-locked crown several times, feeling for the thread catching cleanly. At 300 metres the crown is a primary seal and a cross-threaded one is an expensive tube repair.
- Expect this to stop overnight if it is left off the wrist. Thirty-eight hours sits at the bottom of the range covered on this site, and a buyer used to a 70-hour movement will think the watch is faulty.
AB0156161C1S1
- Quote the 14.55 mm thickness to any buyer who wears a fitted cuff. It is the tallest Breitling case documented here, and height rather than diameter is what a shirt sleeve notices.
- Match the blue rubber strap to the blue dial under daylight before you photograph either. Rubber and lacquer take colour differently and a mismatch that looks deliberate in one light looks like a replacement strap in another.
- Verify the chronograph is the 30-minute type published for this reference rather than the 12-hour version used elsewhere on the same calibre name.
Sources
- Breitling official product page for reference A17375211B1S1 (Superocean Automatic 42) - Caliber: Breitling 17; Movement: self-winding mechanical; Power reserve: approx. 38 hrs; Vibration: 28,800 v.p.h; Jewel: 26 jewels; Case material: stainless steel; Caseback: screwed in; Water resistance: 30 bars (300 m / 990 ft); Bezel: unidirectional, ratcheted; Crown: screw-locked, two gaskets; Crystal: cambered sapphire, glareproofed both sides; Diameter: 42 mm; Thickness: 12.56 mm; Lug width (in-between lug): 22 mm; Strap material: rubber; Strap color: black; Strap type: straight; Lug: 22/18 mm; Buckle material: stainless steel; Buckle type: folding clasp; Buckle size: 18 mm; page meta description states a black dial — retrieved 2026-09-22
- Breitling official product page for reference AB0156161C1S1 (Superocean Heritage B01 Chronograph 42) - Caliber: Breitling 01 (Manufacture); Movement: self-winding mechanical; Power reserve: approx. 70 hrs; Chronograph: 1/4th second, 30 minutes; Vibration: 28,800 v.p.h; Jewel: 41 jewels; Calendar: dial aperture; Case material: stainless steel; Caseback: screwed in (sapphire crystal); Water resistance: 20 bars (200 m / 660 ft); Bezel: unidirectional, ratcheted; Crown: screw-locked, two gaskets; Crystal: cambered sapphire, glareproofed both sides; Diameter: 42 mm; Thickness: 14.55 mm; Lug width (in-between lug): 22.05 mm; Strap material: rubber; Strap color: blue; Strap type: straight; Lug: 22/18 mm; Buckle material: stainless steel; Buckle type: folding clasp; Buckle size: 18 mm; page meta description states a blue dial — retrieved 2026-09-22
Not affiliated with Breitling. Specifications are read from each manufacturer's own published documentation on the dates shown and may change; the manufacturer's current documentation governs.