3CF Black Bay Chrono 39 “Bumblebee”: Yellow Dial and 7750 Movement
The Black Bay Chrono 39 “Bumblebee” stands out for its lemon-yellow dial and dark accents. This 3CF version combines a 39mm case, a snowflake hour hand, and a three-link steel bracelet with a 7750 movement.
39mm Case and Yellow Dial
The case measures 39mm in diameter and 13.1mm thick. The domed, matte yellow dial is the watch’s defining feature. Dark-toned hands, hour markers, and markings contrast with the dial and complement the bezel.
The snowflake hour hand retains a familiar Black Bay design detail. The hands and hour markers feature luminous elements for reading the time in low light. Actual brightness and duration should be judged from the individual watch.
Three-Link Bracelet and Clasp Adjustment
The three-link stainless steel bracelet suits the watch’s sporty design. Its clasp allows small adjustments to the fit during everyday wear. For the best fit, adjust the bracelet links first, then use the clasp for finer changes.
How the 7750 Differs from the Tudor Original
This 3CF version uses a 7750 movement. The Tudor Black Bay Chrono 39 reference M79310N-0001 uses the MT5813 movement. These are different movement configurations, so the original model’s movement certification and power reserve figures should not be applied to the 3CF version.
Frequently Asked Questions
Which design does “Bumblebee” refer to?
It commonly refers to the Black Bay Chrono 39 design with a yellow dial and dark accents. The corresponding Tudor reference is M79310N-0001.
What movement does this 3CF version use?
This version uses a 7750 movement, which differs from the MT5813 fitted to the Tudor original.
What are the case dimensions?
The supplied specifications list a 39mm diameter and a 13.1mm thickness.
How strong is the lume?
The hands and hour markers have luminous elements. If brightness and duration matter to you, check photos or video of the specific watch in low light.
Can the clasp adjustment replace removing bracelet links?
No. Removing links sets the bracelet’s basic length; the clasp provides smaller day-to-day adjustments.
Can I wear this watch while swimming?
Check the water-resistance test result for the specific watch before exposing it to water. The Tudor original’s water-resistance rating does not establish the rating of this 3CF version.
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