REFERENCE 79030N-0002
CASE
39 mm steel case with polished and satin finish
BEZEL
Unidirectional rotatable bezel in steel with 60-minute graduated disc in matt black anodised aluminium and pink gilded markings and numerals
WINDING CROWN
Steel screw-down winding crown, with the TUDOR rose in relief, with circular satin-brushed steel winding crown tube
DIAL
Black, domed
CRYSTAL
Domed sapphire crystal
WATERPROOFNESS
Waterproof to 200 m (660 ft)
BRACELET
Brown leather strap with folding clasp and safety catch
MOVEMENT
Manufacture Calibre MT5402 (COSC)
Self-winding mechanical movement with bidirectional rotor system
PRECISION
Swiss Chronometer officially certified by the COSC (Swiss Official Chronometer Testing Institute)
FUNCTIONS
Centre hour, minute and seconds hands
Stop-seconds for precise time setting
OSCILLATOR
Variable inertia balance, micro-adjustment by screw
Non-magnetic silicon balance spring
Frequency: 28,800 beats/hour (4Hz)
TOTAL DIAMETER
26 mm
THICKNESS
4.99 mm
JEWELS
27 jewels
POWER RESERVE
Approximately 70 hours