Oris Big Crown 3 Automatic Day Date

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Introduced in 1999, the Big Crown (BC) 3 Automatic Day Date belongs to third generation of pilot watches from Swiss watch brand Oris. The oversized crown is an unmistakable indication of its ancestry.

Oris Big Crown 3 Automatic Day Date

The Oris BC3 Automatic Day Date watch is powered by the Calibre 635 (base ETA 2836-2), a 25 jewel movement with a power reserve of 38 hours. Dressed in a 35mm or 40mm case, this model is available in black, blue and white dial versions.

Fitted with the famous oversized crown, it features date and day windows at 6 and 12 o’clock. The automatic Big Crown boasts a solid stainless steel case and a bracelet with rectangular links or a matching rubber strap.

Technical details

Model: Oris Big Crown 3 Automatic Day Date

Versions

  • 635 7500 41 65 RS: 40 mm, blue dial, blue rubber strap
  • 635 7501 41 65 RS: 35 mm, blue dial, blue rubber strap
  • 635 7500 41 65 MB: 40 mm, blue dial, stainless steel bracelet
  • 635 7501 41 65 MB: 35 mm, blue dial, stainless steel bracelet
  • 635 7500 41 61 RS: 40 mm, white dial, black rubber strap
  • 635 7501 41 61 RS: 35 mm, white dial, black rubber strap
  • 635 7500 41 61 MB: 40 mm, white dial, stainless steel bracelet
  • 635 7501 41 61 MB: 35 mm, white dial, stainless steel bracelet
  • 635 7500 41 64 RS: 40 mm, black dial, black rubber strap
  • 635 7501 41 64 RS: 35 mm, black dial, black rubber strap
  • 635 7500 41 64 MB: 40 mm, black dial, stainless steel bracelet
  • 635 7501 41 64 MB: 35 mm, black dial, stainless steel bracelet

Movement
Calibre Oris 635, base ETA 2836-2
Diameter: 25.60 mm, 11 1/2”’
Bi-directional automatic winding with ball bearing
25 jewels
Incabloc shock protection
Frequency: 28,800 A/h, 4 Hz,
Power-reserve: 38 hours
Fine timing device and stop-seconds function
Centre hands for hours, minutes and seconds
Individual date and day windows, instantaneous date and day
Date and day corrector

Case
Stainless steel case
40 and 35 mm in diameter
Sapphire crystal front glass
Screw-down back with mineral glass
Water-resistant to 50 meters

Dial
Black, blue or white dial
Luminescent hour markers and hands
Day at 12 o’clock
Date at 6 o’clock

Bracelet/Strap
Stainless steel bracelet with double-safety folding clasp
Genuine leather or rubber strap available