Norris Jay Perez — AmplitudeHK certified watchmaker at the masterclass

Certified Pre-owned Tudor Timepeices

Inspected.
Graded.
Guaranteed.

Every watch is personally inspected by Norris — authentic, functional, and honestly graded before it reaches you.

  • Founder, www.Amplitude.watch
  • Returns accepted for authenticity issues
🔐 Authenticity
Verified
⚙️ Movement
Tested
🔍 Condition
Graded
↩️ Authenticity
Returns

Condition Grading

What each grade means

Grades are assigned by Norris personally after physical inspection. Every listing shows exactly what you're getting.

Mint

Unworn or display-only. No scratches on case or crystal. Bracelet is tight.

Expect: Like new condition

Near Mint

Light hairlines only, visible under loupe. No dings or marks on case.

Expect: Minimal wear

Lightly Worn

Normal daily wear marks. Scratches visible to naked eye but not distracting.

Expect: Honest daily use

Heavily Worn

Significant scratches, possible dings. Fully functional. Priced to reflect condition.

Expect: Priced accordingly

4 watches available Newest first
Black Bay Pro GMT Certified
Lightly Worn
M79470-0001
PHP 172,000
SRP PHP 276,000
Black Bay GMT "Pepsi" Certified
Near Mint
M79830RB-0001
PHP 180,000
SRP PHP 286,000
Black Bay Monochrome Rubber Certified
Mint
M7941A1A0NU-0002
PHP 198,000
SRP PHP 276,500
Ranger Certified
Near Mint
M79950-0001
PHP 135,000
SRP PHP 217,500