






Tudor Oysterdate Big Block in stainless steel
| Stainless steel | Automatic | 40.0mm
The "Big Block" nickname tells you everything you need to know about the engineering philosophy here. It earns its moniker from the deeper, taller case required to house the automatic Valjoux 7750 — a decision that gave Tudor something genuinely significant: a fully automatic chronograph with date at a time when Rolex was only just introducing the same on the Daytona. For those who know, that context matters.
The 40mm Oyster case in stainless steel is purposeful and well-proportioned, with screw-down crown and pushers ensuring water resistance, and an acrylic black tachymeter bezel that wears its age honestly. The Valjoux 7750 delivers running seconds at 9 o'clock, a 30-minute counter at 12, and a 12-hour totalizer at 6 — a layout that prioritises legibility. The reverse panda dial — black ground, white sub-dials — is the most visually striking and collectible configuration on this reference.
This example presents in appealing condition.
Please note that the following elements were replaced during the life of the watch
- bezel (case reference is 94210 and dates back to 1978, the bezel should be rotating)
- dial & hands (service from the 90s)
- bracelet (code T12, from 1995)
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SPECIFICATIONS
Reference 79160
Year
Diameter 40.0 mm
Movement Automatic
Dial color Noir
Case material Stainless steel
Bracelet material Stainless steel
Accessories
CONDITION
Case Very good
Dial Service
Movement Serviced
Hands Very good
Crown Very good
Warranty 12 months
Tudor

