Oris BC3 Day Date | Time to clean the air | No. 42

Ouch. When this BC3 Day Date pilot’s watch landed at our Hölstein HQ, it looked like it had crash landed. The brief: clean it up, get it flight-ready again. Possible? We like a challenge. Have a watch to see if we gave this one back its wings.

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►PRODUCT INFORMATION

Model: BC3 Day Date
Ref. No. 01 635 7500 4164-07 4 20 10

CASE
Material: Multi-piece stainless steel case
Size: 40.00 mm
Top Glass: Sapphire, flat
Case Back: Stainless steel, screwed, see-through mineral glass
Operating Devices: Stainless steel crown
Water Resistance: 5 bar
Interhorn Width: 20 mm

MOVEMENT
Number: Oris 635, base ETA 2836-2
Dimensions: Ø 25.60 mm, 11 1/2’’’
Functions: Centre hands for hours, minutes and seconds, individual date and day windows, instantaneous date and day, date and day corrector, fine timing device and stop-second
Power-Reserve: 38 hrs
Vibrations: 28’800 A/h, 4 Hz
Jewels: 25

DIAL
Color: Black
Luminous Material: Indices and hands Superluminova C3

STRAP/BRACELET
Black rubber strap, stainless steel security folding clasp

https://www.oris.ch/watch/bc3-day-dat...

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Timecodes
0:00 Intro
0:35 Dismantling the watch
0:52 Restoring and cleaning process
1:30 Assembling the watch
2:26 Finished watch
2:57 Go your own way