Corsair CS 05

Biatec Corsair CS 05

Biatec Corsair CS 05 Mechanical Automatic Watch Oblique Final View Vintage Nubuk Leather Low

Short Description

The Corsair CS 05 belongs to the pilot style Biatec Corsair Collection and features a 316L stainless steel solid case, an elegant blue sunburst dial with three dimensional silver hour numbers, nicely polished silver hour and minute hand filled with the finest Super-LumiNova®, central seconds and a fine quality vintage nubuk brown leather strap with contrast stitching and a stainless steel buckle. The real highlight of the watch is a Swiss automatic movement Eterna 3902A with a rotor inspired by the Vought F4U Corsair aircraft.

Biatec Corsair 03 Mechanical Automatic Watch Back View Propeller Lighter

Big diamond crown with Biatec logo remains us old days when pilots could easily wind or adjust their watches while wearing gloves.

The lugs of the watch are also a reminder of the legendary design of the Corsair’s wings.

Biatec Corsair 03 Mechanical Automatic Watch Back View Crown Lighter

Please refer to the Corsair collection page to see all Corsair models.

You can read comprehensive technical specifications below on this page.

Biatec Corsair CS 05 Mechanical Automatic Watch Bown Leather strap vintage nubuk

Technical Specifications



  • 316L stainless steel case
  • Brushed and polished finish
  • Front Sapphire crystal with antireflective coating on both sides
  • See-through Sapphire crystal back with inner double antireflective coating
  • Screwed caseback
  • Viton® sealing under caseback – resistant against chemicals
  • Big diamond screwed-down crown with Biatec logo
  • Screwed polished serial number plate applied to the bottom lug
  • Width: 40.00 mm without crown, 44.20 mm with crown
  • 48.00 mm lug to lug distance
  • Thickness: 12.8 mm
  • Lug width: 20 mm



  • Blue sunburst dial
  • Central seconds
  • 3D silver numbers printed with Super-LumiNova® T3 grade A
  • Silver hands filled with Super-LumiNova® T3 grade A




  • Vintage nubuk brown leather with suede feel and white stitching
  • Very comfortable, thickness: 3.00 mm
  • Length: 120.00 mm (long side), 80.00 mm (short side)
  • 316L stainless steel buckle with Biatec logo




  • 100 meters, 10 atm.



Swiss made Eterna calibre 3902A with rotor customized for Biatec.

Biatec Corsair Collection - Swiss Made 3901A Mechanical Automatic Movement with Customized Corsair Rotor


  • Self-winding
  • Vibrations per hour: 28.800
  • Frequency: 4Hz
  • Jewels: 29
  • Ball bearing: 1
  • Shock-absorber




  • ~65 hours




  • Rhodium-plating / Shot-blasting
  • Pearl pattern on the bridge




  • Customized for Biatec.
  • Propeller with black and yellow colors.
  • Corsair logo on oscillating weight.

More Models

Corsair CS 01

Corsair CS 02

Corsair CS 03

Corsair CS 04