Tudor
Tudor North Flag 91210N
The Tudor North Flag (reference 91210N) is a 40 mm ceramic / Stainless Steel watch with a black dial. It runs on the automatic caliber MT5621 with a 70-hour power reserve and is water resistant to 100 m. It was introduced in 2015.
Specifications
Case
- Reference
- 91210N
- Collection
- North Flag
- Case size
- 40 mm
- Case material
- Ceramic / Stainless Steel
- Water resistance
- 100 m
- Bracelet / strap
- Bracelet
Dial and bezel
- Dial
- Black
Movement
- Movement
- Automatic
- Caliber
- MT5621
- Power reserve
- 70 hours
- Frequency
- 28,800 vph
Production
- Production
- 2015 – today (discontinued)
Dial versions
This reference was made with these dials and finishes.
91210N Black Matte #0001
91210N-0001
Matte
91210N Black Matte #0002
91210N-0002
Matte
How it compares within the North Flag family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 91210N (This watch) | 40 mm | Ceramic / Stainless Steel | Black | MT5621 | 2015– |
| 9140G1A0U | — | — | Black | — | — |
About the North Flag family
The North Flag was introduced in 2015 and carried Tudor's first in-house caliber, the MT5621, which shows a power reserve indicator on the dial along with the date. The case is in steel with a black ceramic ring and yellow accents.
The catalog holds the 40 mm models 91210N and 9140G1A0U. Dealers check whether the watch is on the steel bracelet or the original strap and look for box and papers.
Quick answers
- What size is the Tudor North Flag 91210N?
- The Tudor North Flag 91210N has a 40 mm case.
- What movement does the Tudor North Flag 91210N use?
- It uses the automatic caliber MT5621, with a 70-hour power reserve.
- How water resistant is the Tudor North Flag 91210N?
- It is water resistant to 100 metres.
- Is the Tudor North Flag 91210N still in production?
- Discontinued.
- When did the Tudor North Flag 91210N come out?
- It was introduced in 2015.
- What is the Tudor North Flag 91210N made of?
- The case is ceramic / Stainless Steel. Bracelet or strap: Bracelet.
Catalog facts checked October 2026.