Tudor Oyster Date Big Block 94300 Stainless Steel 40mm Watch 1981
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Description
Tudor Oyster Date "Big Block" 94300 Stainless Steel 40mm Watch (1981)
The Tudor Oyster Date “Big Block” reference 94300 represents one of the most historically significant and collectible sports chronographs in Tudor’s legacy. Introduced in the early 1980s, the “Big Block” was the first automatic chronograph in Tudor’s lineup—earning its nickname from the noticeably thicker case designed to accommodate the Valjoux 7750 movement. Sharing Rolex cases, crowns, and pushers from the era, this model stands as an essential piece bridging the DNA of both brands.
This example from 1981 features a robust 40mm stainless steel case, a fixed tachymeter bezel, and a beautifully balanced chronograph layout. The watch retains its period-correct charm, with a plastic crystal and graceful aging throughout, adding character to its vintage appeal. Paired with a fresh gray leather strap, it wears with both heritage and style. Inspected and approved by our watchmaker, it performs within excellent parameters at -8 seconds per day. For vintage chronograph enthusiasts, the Big Block remains one of Tudor’s most desirable and investment-worthy timepieces.
PM Number: PM2021227.
Key Details:
- Brand: Tudor
- Series: Oyster Date “Big Block”
- Model Number: 94300
- Serial Number: 96****
- Year: 1981
- Case Size: 40mm
- Material: Stainless Steel
- Movement: Automatic (Valjoux 7750)
- Power Reserve: 48 Hours
- Functions: Hours, Minutes, Seconds, Date, Chronograph
- Timekeeping: -8 Seconds per day
- Water Resistance: 10 ATM (Pressure Tested: Pass)
- Crystal: Plastic
- Bezel: Fixed, Condition 8/10
- Strap: Gray Leather, 8" Max Wrist Size, Tang Buckle
- Case Shape: Round
- Case Back: Solid
- Original or Anything Altered: Aftermarket Band/Buckle
- Box & Papers: No
- Condition: Very Good (8/10), light wear with some crystal marks
This piece has been inspected and approved by our jeweler and watchmaker.