Why is Rolex GMT Master II called Batman?

Related questions

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Tags

1. #watch
2. #batman
3. #master
4. #according
5. #ceramic
6. #bruiser
7. #bezel
8. #simply
9. #called
10. #black
11. #because
12. #associated
13. #christie
14. #knight
15. #nicknamed
16. #rolex
17. #often