Tudor Black Bay Fifty-Eight "Navy Blue" automatic watch

Ever faithful to its long tradition of blue sports watches, TUDOR now offers a “Navy Blue” version of its flagship model, the Black Bay Fifty-Eight.

The Black Bay Fifty-Eight “Navy Blue” gets its name from its colour, of course, but also from the year 1958, in which the first TUDOR divers’ watch waterproof to 200 metres (660 ft), reference 7924 or “Big Crown”, was presented. Among other aesthetic nods to this historic watch, this model offers a 39 mm diameter case in in keeping with the characteristic proportions of the 1950s. Ideal for slim wrists, people who like more compact watches and vintage enthusiasts, the Black Bay Fifty-Eight “Navy Blue” also carries on with the long TUDOR tradition of blue sports watches.

KEY POINTS
1. 39 millimetre case in 316L stainless steel
2. Navy Blue matt domed dial, grained with applied hour-markers
3. "Snowflake" hands, a hallmark of TUDOR divers' watches, since 1969, with grade A, Swiss Super-LumiNova® luminescent material
4. Manufacture Calibre MT5402, COSC-certified with silicon balance spring and 70-hour power reserve
5. Three straps/bracelet options: blue Jacquard fabric with silver band, blue “soft touch”, and “riveted” steel
6. Five-year transferable guarantee, with no registration or periodic maintenance checks required

TUDOR BLUE
In 1969, TUDOR introduced a divers’ watch with a blue dial and bezel. The other sports watches in the collection were soon attired in blue, immediately creating a lasting aesthetic hallmark known as “TUDOR Blue”. Adopted by the French navy for its TUDOR divers’ watches during the 1970s, this livery became part of the collective imagination. The Black Bay Fifty-Eight “Navy Blue” follows in this tradition with its navy blue dial and bezel insert. This is a colour that also appears on the “soft touch” strap offered with this model and made from a synthetic, tactile material resembling flannel.

REFERENCE 79030B

CASE
39 mm 316L steel case with polished and satin finish

BEZEL
Unidirectional rotatable bezel in 316L steel with 60-minute graduated disc in matt blue anodised aluminium and silver gilded markings and numerals

WINDING CROWN
316L steel screw-down winding crown, with the TUDOR rose in relief, with circular satin-brushed 316L steel winding crown tube

DIAL
Blue, domed

CRYSTAL
Domed sapphire crystal

WATERPROOFNESS
Waterproof to 200 m (660 ft)

BRACELET
Riveted 316L steel bracelet with polished and satin-brushed finish, or blue "soft touch" with folding clasp and safety catch, or blue fabric strap with silver band and buckle

CALIBRE
Manufacture Calibre MT5402
Self-winding mechanical movement with bidirectional rotor system

POWER RESERVE
Approximately 70 hours

PRECISION
Swiss chronometer officially certified by 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 (4 Hz)

TOTAL DIAMETER
26 mm

THICKNESS

4.99 mm

JEWELS

27 jewels