TUDOR Heritage Black Bay Steel

The Heritage Black Bay divers’ watch by TUDOR is now available in an all-steel version with the bezel insert in brushed steel. Fitted with the Manufacture Calibre MT5612, the Heritage Black Bay Steel model also introduces the date function to the Black Bay family.

Tudor Heritage Black Bay Steel Reference 79730

An emblematic model celebrating 60 years of TUDOR divers’ watches with extraordinary craftsmanship, this new model with an all steel look (reference 79730) enriches the Heritage Black Bay collection. In this version, Black Bay lines and proportions are retained, while the disc of the rotating bezel is machined from steel and circular satin-brushed for a matt appearance and a highly functional overall effect, embracing the distinctness of the TUDOR divers’ watch.

Tudor Heritage Black Bay Steel

The manufacture Calibre MT5612 is a variation of the movement first presented by TUDOR in 2015 and has been developed for the Heritage Black Bay Steel model. A date function features for the first time in the Black Bay family, adding to the hour, minute and second functions that are a feature of all Black Bay models.

A high-performance calibre of superb precision and proven robustness, the Calibre MT5612 offers 70-hours of power reserve. Beating to a frequency of 28,800 beats/ hour or 4 Hz, the movement is regulated by a variable inertia oscillator with silicon balance spring. This is held in place by a traversing bridge, guaranteeing its robustness. Furthermore, the movement is certified by the Swiss Official Chronometer Testing Institute (COSC).

Tudor Heritage Black Bay Steel watch with black aged leather strap

The bracelet of the Heritage Black Bay Steel model is inspired by the folding riveted bracelets of the TUDOR watches produced in the 1950s and 1960s. These were famous for having rivet heads for attaching the links, shown on the side of the bracelet. The links also had a distinct stepped construction. These two aesthetic details are incorporated into the bracelet of the Heritage Black Bay Steel model, integrating modern manufacturing methods using solid links.

Tudor Heritage Black Bay Steel watch with khaki green Jacquard strap

Available in two designs, Tudor Heritage Black Bay Steel Reference 79730 also comes on a black aged leather strap with folding clasp. Both versions come with an additional khaki green fabric strap.

Made using the Jacquard technique, a traditional method achieved by a 150-year-old family firm from the Saint-Étienne region of France, this strap is a signature feature of TUDOR’s Heritage line.

Technical details

Model: Tudor Heritage Black Bay Steel Reference 79730

41 mm steel case with polished and satin finish
Unidirectional rotating bezel in steel with 60-minute graduated steel disc, black engraved markings
Steel screw-down winding crown, with the TUDOR rose engraved and lacquered in black, with black anodised aluminium winding crown tube
Domed sapphire crystal
Waterproof to 200 m (660 f)

Black, domed

Manufacture Calibre MT5612
Self-winding mechanical movement with bidirectional rotor system
Swiss Chronometer officially certified by the COSC (Swiss Official Chronometer Testing Institute)
Variable inertia balance, micro-adjustment screw
Non-magnetic silicon balance spring
Frequency: 28,800 beats/hour (4Hz)
Total diameter: 31.8 mm
Thickness: 6.5 mm
Jewels: 26 jewels
Power reserve: Approximately 70 hours

Centre hour, minute and seconds hands
Instantaneous date with rapid adjustment without non-correction range
Stop seconds for precise time setting

Steel bracelet or aged leather strap with folding clasp and safety catch
Additional fabric strap with buckle included in the box

Retail Price
With bracelet: Swiss price (VAT incl.) CHF 3,600.–
With strap: Swiss price (VAT incl.) CHF 3,300.–

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