Crowned Koi
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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

Crowned Koi

Certificate of Authentication

CK-CERT-BC3CA337

Brand

Rolex

Model

GMT-Master

Reference

1675

Year

1972

Serial

31•••••

Authenticated by

Pat at Crowned Koi

Date Issued

April 8, 2026

Scan to verify CK-CERT-BC3CA337

Verify at crownedkoi.com/authentication/bc3ca337ec8d43d2b21d9253b9f65bf4

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