Alternative concessions (sei es ... oder ...)

The Watchmaker's Precision

The daily work of a master watchmaker involves navigating a tiny world of delicate components and specialized tools.

The watchmaker looks at the mechanical watch.
Der Uhrmacher betrachtet die mechanische Uhr.

Expressing "Whether it be... or..."

To state that a fact remains true regardless of which two alternatives apply, use the fixed phrase sei es ... oder ... (whether it be ... or ...).

The word sei is a subjunctive form of sein (to be). When placed at the start of a sentence, this phrase acts as an introductory element, so the main clause that follows keeps its standard word order.

Whether it be a tiny gear or the case, the watchmaker sees everything.
Sei es ein winziges Zahnrad oder das Gehäuse, der Uhrmacher sieht alles.
Whether it be the dial or the hand, everything was cleaned.
Sei es das Zifferblatt oder der Zeiger, alles wurde gereinigt.

Appending the Alternatives

You can also append the sei es ... oder ... phrase to the end of a complete main clause. This is a great way to attach specific examples to a broader category.

One must check the tool, whether it be the magnifying glass or the tweezers.
Man muss das Werkzeug prüfen, sei es die Lupe oder die Pinzette.
The watchmaker must adjust everything, whether it be the gear or the pointer.
Der Uhrmacher muss alles justieren, sei es das Zahnrad oder der Zeiger.

Adding "nun"

Native speakers often insert the particle nun right after sei es. This creates sei es nun ... oder ..., adding a natural, conversational rhythm without changing the meaning.

Whether it be a mechanical or an automatic watch, he repairs it.
Sei es nun eine mechanische oder eine automatische Uhr, er repariert sie.