Crowned Koi
Book an appointmentor email pat@crownedkoi.com
Crowned Koi
The Collection

Explore Our Watches

Curated vintage & collectible timepieces

By appointment in NYC

Every watch authenticated in-house by Pat. Reply to any email or text to reach him directly.

pat@crownedkoi.comMon–Sat · 10a–7p ET

Popular

Crowned Koi

Certificate of Authentication

CK-CERT-806A81E1

Brand

Rolex

Model

Sea-Dweller

Reference

16600

Year

2003

Serial

Y8•••••

Authenticated by

Pat at Crowned Koi

Date Issued

July 2, 2026

Scan to verify CK-CERT-806A81E1

Verify at crownedkoi.com/authentication/806a81e1547d41758b8de433f17969d4

← View watch listingAbout authentication