The Tudor North Flag Ref. 91210N is a bold and modern tool watch inspired by adventure and precision. Featuring Tudor’s first in-house movement, this 40mm stainless steel timepiece balances cutting-edge performance with a clean, contemporary design.
Its matte black dial includes a power reserve indicator and date display, powered by the Tudor Caliber MT5621, a COSC-certified automatic movement with a 70-hour power reserve. A sapphire case back offers a rare view of the movement—highlighting the North Flag’s engineering pedigree.
This model is fitted with a solid stainless steel bracelet, sized to fit up to a 7¼-inch wrist, and comes complete with its original box, warranty card, and manuals — a true full set for collectors and enthusiasts alike.
Key Features:
Brand: Tudor
Model: North Flag
Reference: 91210N
Movement: Tudor Caliber MT5621 (Automatic, COSC Certified)
Power Reserve: 70 hours
Case Material: Stainless Steel
Case Size: 40mm
Case Back: Sapphire crystal (exhibition)
Dial: Matte black with power reserve and date display
Bracelet: Stainless steel, fits up to 7¼ inches
Crystal: Sapphire
Water Resistance: 100 meters (10 ATM)
Condition: Pre-owned, excellent condition
Includes: Full set – original box, warranty card, manual
A standout in Tudor’s modern lineup, the North Flag offers advanced mechanics, rugged aesthetics, and everyday versatility.
The Tudor North Flag Ref. 91210N is a bold and modern tool watch inspired by adventure and precision. Featuring Tudor’s first in-house movement, this 40mm stainless steel timepiece balances cutting-edge performance with a clean, contemporary design.
Its matte black dial includes a power reserve indicator and date display, powered by the Tudor Caliber MT5621, a COSC-certified automatic movement with a 70-hour power reserve. A sapphire case back offers a rare view of the movement—highlighting the North Flag’s engineering pedigree.
This model is fitted with a solid stainless steel bracelet, sized to fit up to a 7¼-inch wrist, and comes complete with its original box, warranty card, and manuals — a true full set for collectors and enthusiasts alike.
Key Features:
Brand: Tudor
Model: North Flag
Reference: 91210N
Movement: Tudor Caliber MT5621 (Automatic, COSC Certified)
Power Reserve: 70 hours
Case Material: Stainless Steel
Case Size: 40mm
Case Back: Sapphire crystal (exhibition)
Dial: Matte black with power reserve and date display
Bracelet: Stainless steel, fits up to 7¼ inches
Crystal: Sapphire
Water Resistance: 100 meters (10 ATM)
Condition: Pre-owned, excellent condition
Includes: Full set – original box, warranty card, manual
A standout in Tudor’s modern lineup, the North Flag offers advanced mechanics, rugged aesthetics, and everyday versatility.
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