Breitling · Superocean Heritage and Superocean Heritage

Breitling AB0156161C1S1 vs Breitling U10340161C1A1

14 published specifications differ between these two, and 4 are identical. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.

What differs

Specification	Breitling Superocean Heritage B01 Chronograph 42, blue dial, rubber strapAB0156161C1S1	Breitling Superocean Heritage '57 Highlands, steel and 18k red gold, blue dialU10340161C1A1
Case	Stainless steel, 42 mm	Stainless steel and 18k red gold, 38 mm
Diameter	42 mm	38 mm
Thickness	14.55 mm	9.35 mm
Lug width	22.05 mm	18 mm
Water resistance	20 bars (200 m / 660 ft)	10 bars (100 m / 330 ft)
Bezel	Unidirectional, ratcheted	Bidirectional ratcheted
Case back	Screwed in (sapphire crystal)	Screwed in
Crown	Screw-locked, two gaskets	Non screw-locked, two gaskets
Bracelet	Rubber strap, blue, straight, 22/18 mm	Stainless steel bracelet, curved, 18/16 mm
Clasp	Stainless steel folding clasp, 18 mm	Stainless steel folding clasp, 16 mm
Calibre	Breitling 01 (Manufacture)	Breitling 10
Power reserve	Approximately 70 hours	Approximately 42 hours
Jewels	41	25
Movement notes	Chronograph to 1/4th second with a 30-minute totaliser. Calendar shown in a dial aperture.	No chronograph or calendar complication is listed for this reference.

What is identical

Worth knowing as much as the differences: these are the specifications you cannot use to tell the two apart.

Crystal: Cambered sapphire, glareproofed both sides
Dial: Blue, as stated in the page description
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.

These reach different buyers

42 mm on the AB0156161C1S1 against 38 mm on the U10340161C1A1. Diameter is a poor predictor of how a watch actually sits, but it is the field buyers filter on, so the two land in front of different people. Do not let one listing's photographs or copy stand in for the other.

A visible difference in how they wear

5.2 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

200 metres on the AB0156161C1S1 against 100 on the U10340161C1A1. 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 42 on the U10340161C1A1. 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.

One of these is a different asset to hold

The U10340161C1A1 has a gold case and the AB0156161C1S1 is steel. That is not just a price difference: a precious-metal case changes what your insurer needs told, how the piece should be stored and handled, and — in some jurisdictions — whether trading it puts you under a precious-metals rule your steel stock would not. Check your own city guide before you assume they are the same transaction.

One needs sizing, the other needs stock

The U10340161C1A1 comes on a bracelet and the AB0156161C1S1 on a strap. They are different jobs at resale: a bracelet has to be sized and its removed links kept with the watch, because a buyer who receives it short of links has received an incomplete watch. A strap is a consumable — check whether the one on the wrist is the one that should be in the photographs.

What to check on each

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.

U10340161C1A1

Read the crown specification before you describe this as a dive watch. It is a Superocean rated to 100 metres with a crown that does not screw down, which is not the same proposition as the 300-metre references in the same family.
Check where the red gold is and where the steel is, then judge wear separately on each. Gold is softer, marks more readily and cannot be refinished as freely, so a two-metal case wears unevenly by nature.
Confirm the bezel turns both ways. It is specified as bidirectional here, unlike the unidirectional bezels on the dive-rated Superoceans, and a stiff one is a fault rather than a safety catch.

Sources

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.