Transocean Day & Date Stainless Steel / Black / Croco / Folding

In Context

At 43 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. At 12.8 mm it is a tall case, and it will catch on a cuff. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. Its 38-hour reserve wants wearing most days; leave it off and it stops. At 28,800 vph the seconds hand advances 8 times a second.

A4531012/BB69/744P/A20D.1 stands on its own in this catalogue — no other reference here shares its base number. It pairs a black matte dial with a stainless steel case.

The Caliber 45 is Breitling's day-date automatic, an ETA 2834-2 finished to chronometer standard. It powers 118 watches in this library, 93 of them the Transocean Day & Date. The 2834 is the 2824 with a day disc added beside the date, and it is the movement behind every Breitling that shows both in a window at 3 o'clock. It runs at 28,800 vph with a 38-hour reserve, 25 jewels, 29 mm across and 5.05 mm high, and every Caliber 45 is COSC-certified. There is no chronograph and no in-house architecture; it is a simple movement in a line that was otherwise about chronographs. In the library it is chiefly the [Transocean Day & Date](/brands/breitling/transocean), a 43 mm dress watch of the 2010s, at 93 references. The [Premier Automatic Day & Date 40](/brands/breitling/premier) accounts for 14, the AVI for 9 and the [Galactic](/brands/breitling/galactic) for 2. The 43 mm case is the most common size at 93 references and the 40 mm at 14. The [Caliber 17](/calibers/breitling-caliber-17) is the same 2824 family with the date alone, and the [Caliber 10](/calibers/breitling-caliber-10) the thinner 2892-based three-hander.

117 other watches in the library run the Breitling Caliber 45.

Breitling

Transocean Day & Date Red Gold / Silver / Calf / Folding

R4531012/G752/438X/R20D.1 · 43 mm

Breitling

Transocean Day & Date Red Gold / Silver / Rubber / Folding

R4531012/G752/279S/R20D.3 · 43 mm

Breitling

Transocean Day & Date Stainless Steel / Silver / Calf / Pin

A4531012/G751/433X/A20BA.1 · 43 mm

Breitling

Transocean Day & Date Red Gold / Black / Calf / Pin

R4531012/BB70/435X/R20BA.1 · 43 mm