Tudor Black Bay Chrono 39 Bumblebee: A Compact Revolution in 2026
Tudor Black Bay Chrono 39 Bumblebee: A Compact Revolution
In a move that has excited watch enthusiasts worldwide, Tudor has unveiled the Black Bay Chrono 39 Bumblebee — a significantly more compact version of their beloved chronograph. According to Monochrome Watches, this isn't just a simple size reduction; it represents a comprehensive redesign that touches nearly every aspect of the watch.
What's Changed: Size and Proportions
The most obvious update is the case size. Tudor has reduced the diameter from 41mm to 39mm, the thickness from 14.2mm to 13.1mm, and the lug-to-lug from 49.9mm to 47mm. These changes make the Black Bay Chrono significantly more wearable for a wider range of wrist sizes.
| Specification | BB Chrono 41mm | BB Chrono 39 Bumblebee |
|---|---|---|
| Diameter | 41mm | 39mm |
| Thickness | 14.2mm | 13.1mm |
| Lug-to-Lug | 49.9mm | 47mm |
| Water Resistance | 200m | 200m |
| Movement | MT5813 | MT5813 |
Beyond the size, Tudor has introduced a slimmer bezel profile, narrower bezel insert, newly designed tachymeter scale, and smaller screw-down chronograph pushers. The crown now features the Tudor Shield logo instead of the Rose logo.
The Bold Yellow Dial
The "Bumblebee" nickname comes from the striking matte yellow dial paired with black sub-counters. According to Monochrome Watches, this color choice was deliberately bold — classical black or blue would have been too predictable. The bicompax layout remains, though the subdials are now flat with a snailed finish rather than the previous concave design.
Same Proven Movement
Inside, the Black Bay Chrono 39 houses the same Calibre MT5813 found in its larger siblings. This automatic chronograph, based on the Breitling B01 architecture, is COSC-certified with an accuracy of -2/+4 seconds per day. It features a column wheel, 70-hour power reserve, silicon balance spring, and a 45-minute chronograph counter.
Pricing and Availability
- Reference: 79310N
- Price: EUR 6,200 / CHF 5,500
- Bracelet: Three-link stainless steel with T-Fit micro-adjust clasp
- Limited Edition: No (part of the "Daring Watches" collection)
FAQ
Q: Is the Black Bay Chrono 39 water resistant?
A: Yes, it maintains 200m water resistance despite the smaller case.
Q: Does it use the same movement as the 41mm version?
A: Yes, it uses the same COSC-certified MT5813 calibre with 70-hour power reserve.
Q: Will Tudor release other dial colors in 39mm?
A: While not confirmed, Tudor is expected to expand the 39mm lineup with additional colorways.
Source: Monochrome Watches, June 29, 2026
For more information on Tudor's Black Bay collection, visit our Tudor Buying Guide.