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The Encyclopedia of Horology

Wristwatch · Automatic wristwatch with date

Tudor Oysterdate Ranger, Ref. 7966/0

Partially verified

This steel Tudor Oysterdate Ranger wristwatch, reference 7966/0, is catalogued with serial number 589445 and dated circa 1967. According to the auction catalogue, the watch features an automatic movement within a 34 mm steel case fitted to a steel link bracelet measuring approximately 160 mm in overall length. The black dial displays luminous Arabic numerals at 6, 9, and 12, baton markers, an arrow-tipped hour hand, and a magnified date aperture at 3 o'clock. The lot was catalogued as accompanied by neither box nor papers.

Front view of Tudor Oysterdate Ranger Ref. 7966/0 showing black dial, steel case, and steel bracelet
Front view of Tudor Oysterdate Ranger Ref. 7966/0 showing black dial, steel case, and steel bracelet — Christie's. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
onlineonly.christies.com
Category
Wristwatch · Automatic wristwatch with date
Maker / attribution
Tudor
Reference
7966/0
Catalogue / lot identifier
344
Source-reported date
circa 1967
Country
Switzerland
Source-reported serial
589445

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Object Identification

This timepiece is identified as a Tudor Oysterdate Ranger, reference 7966/0. It is recorded with serial number 589445 and is catalogued as dating to circa 1967.

The watch is constructed with a 34 mm steel case. It is sold without accompanying box or original papers.

Evidence for this section
  • “REF. 7966/0”
  • “SERIAL NO’:589445”
  • “CIRCA: 1967”
  • “CASE DIAMETER: 34mm”
  • “BOX: No”
  • “PAPERS: No”

Dial and Visual Appointments

The black dial features the 'TUDOR PRINCE OYSTERDATE' signature below the 12 o'clock position and 'RANGER' inscription above the 6 o'clock position. Luminous Arabic numerals are present at 6, 9, and 12, with baton markers for the remaining hours.

The watch is equipped with an arrow-tipped hour hand, a baton minute hand, and a sweep centre seconds hand. A date display is positioned at 3 o'clock beneath an acrylic crystal with a cyclops magnification lens.

Evidence for this section
  • “Black dial with Tudor shield logo and inscribed 'TUDOR PRINCE OYSTERDATE' below 12 and 'RANGER' above 6”
  • “Luminous Arabic numerals at 6, 9, and 12 with baton markers for the remaining hours”
  • “Date display at 3 o'clock under an acrylic crystal with cyclops magnification lens”

Mechanical and Physical Condition

The watch is fitted with an automatic movement and a brushed stainless steel link bracelet measuring approximately 160 mm in length. A signed fluted winding crown is positioned at 3 o'clock.

According to the source, the movement is in working order as of the time of cataloguing but has not been tested for accuracy. Regarding the dial, the source reports that the lume does not respond when shown with UV light.

Evidence for this section
  • “MOVEMENT: Automatic”
  • “BRACELET SIZE: 160mm Approximate Overall Length”
  • “Signed fluted winding crown at 3 o'clock”
  • “The movement is in working order at the time of cataloging, consistent with the age of the watch. The movement has not been tested for accuracy.”
  • “The lume does not respond when shown with UV light.”

Open research questions

  • What is the specific movement caliber housed within serial 589445?
  • Do the markings on the interior of the case back correspond to the circa 1967 dating?

Source evidence

Recorded claims and source quotations for Tudor Oysterdate Ranger, Ref. 7966/0
FieldSource-reported valueSource quotation
Reference7966/0“REF. 7966/0”
Serial Number589445“SERIAL NO’:589445”
Circa1967“CIRCA: 1967”
Case MaterialSteel“CASE MATERIAL: Steel”
Case Diameter34mm“CASE DIAMETER: 34mm”
MovementAutomatic“MOVEMENT: Automatic”
Bracelet Size160mm Approximate Overall Length“BRACELET SIZE: 160mm Approximate Overall Length”
Bracelet MaterialSteel“BRACELET MATERIAL: Steel”

Visible details

  • Black dial with Tudor shield logo and inscribed 'TUDOR PRINCE OYSTERDATE' below 12 and 'RANGER' above 6
  • Luminous Arabic numerals at 6, 9, and 12 with baton markers for the remaining hours
  • Arrow-tipped hour hand, baton minute hand, and sweep centre seconds hand with rectangular luminous pip
  • Date display at 3 o'clock under an acrylic crystal with cyclops magnification lens
  • Brushed stainless steel oyster-style link bracelet fitted to matching lugs
  • Signed fluted winding crown at 3 o'clock

Research qualifications

  • Movement caliber and case back interior are not shown in the lot photography.
  • Source condition report notes the dial lume does not react to UV light and that accuracy has not been tested.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

TUDOR, REF. 7966/0, RANGER, A STEEL WRISTWATCH WITH DATE ON BRACELET, | Christie’s

Reviewed 2026-10-22 · Record d6eaa5c325

Terms in this record

Glossary explanations for terms named in this object’s record.