この時計は正確です。

この時計は正確です。

This clock is accurate.

この時計(とけい)は正確(せいかく)です。

Kono tokei wa seikaku desu.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

時計 (とけい、ときはかり)

watch; clock; timepiece

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

正確 (せいかく)

accurate; punctual; exact; authentic; veracious

です (です)

be; is

Readings: ジ、とき、 -どき

Meanings: time, hour

Readings: ケイ、はか.る、はか.らう

Meanings: plot, plan, scheme, measure

Readings: セイ、ショウ、ただ.しい、ただ.す、まさ、まさ.に

Meanings: correct, justice, righteous, 10**40

Readings: カク、コウ、たし.か、たし.かめる

Meanings: assurance, firm, tight, hard, solid, confirm, clear, evident