Founded in 1926, in Geneva, Switzerland, by Hans Wilsdorf, Tudor is a very close sister to the most well known watch brand in the world, Rolex. Hans Wilsdorf, also the founder of Rolex, created the brand just seven years after Rolex had moved to Switzerland. The intent was to create a more affordable watch while still maintaining that Rolex quality. For a long time, Tudor used off-the-shelf movements with cases and bracelets produced by Rolex. Today, Tudor is still a close sister company to Rolex, providing exceptional watches with great heritage at a more affordable price.

This watch is the original Tudor Oyster. Reference 7904. Overall, this watch is in (B) Good Condition. 

- Ref No. : 7904
- Serial No./Year: 136187-/- Circa 1955
- Case:
    34mm diameter, 19mm lug width, 11.5mm thickness, 40.4mm Lug-to-lug.
    Stainless Steel
- Crystal: Plexiglass Acrylic
- Movement & Accuracy: 
    Caliber: TUDOR Manual Cal. 1182 (ETA 1080 Base)
    Complications: Central Seconds
    Measured Accuracy: +11 sec/day.
    Amplitude: 310°
    Beat Rate: 18000 A/h
- Band: Replacement Leather Strap.
- Condition Rank: (B) Good Condition. Please See Photos and Condition Rank Guide
- Country of Manufacture: Switzerland

Condition Rank Guide:
-NOS: Item is in New Old Stock condition (NOS). Shows little to no signs of wear apart from some minor handling wear.
-A+: Item is in Excellent condition. Micro-scratches can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or scratches in the crystal.
-A: Item is in Very Good condition. Minor scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or deep scratches on the crystal.
-B: Item is in Good condition. Moderate scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. Minor pitting/gouges may be visible on the case. One or less deep scratches may be visible on the crystal. See photos.
-C: Item is in Fair condition. Heavy scratches and scuffs can be seen on sides of the case, bezel, and bracelet. Significant pitting or gouges are visible on the sides of the case and the crystal shows multiple deep scratches
-NR: Item is in Non-Running condition. Item is not functional. For parts or repair only.