Tudor Black Bay 58 GMT Jubilee 39mm 7939G1A0NRU

Overview

The Tudor Black Bay 58 GMT reference 7939G1A0NRU — the Coke — is the most technically ambitious watch in the BB58 line. A true flyer GMT in a 39mm case is a meaningful engineering achievement: the local hour hand adjusts in one-hour increments without stopping the movement, a complication that Tudor has packaged into the same slim profile as the standard BB58.

The 39mm case retains the BB58’s defining proportions: 11.7mm thick, with a domed sapphire crystal and the gilt-toned dial that references the vintage Tudor Submariners of the late 1950s. The black and red bicolour aluminium bezel — Coke in collector shorthand — tracks the second time zone via a 24-hour scale. The five-link Jubilee bracelet with T-fit clasp adjusts in 8mm increments without tools.

The movement is the Calibre MT5450-U: COSC and METAS Master Chronometer certified, anti-magnetic to 15,000 gauss, with a true flyer GMT complication and a 65-hour power reserve. Water resistance is 200 metres.

The BB58 GMT occupies a position that no other watch in this price range matches directly: GMT function, METAS certification, and a 39mm case at this size. The GMT complications at the Rolex and comparable price points sit on larger cases. Brand new, complete with box and papers dated May 2026, at RM18,800.

Specifications

Brand :	Tudor
Model Name :	Black Bay 58 GMT
Reference :	7939G1A0NRU
Material	Stainless Steel
Movement :	Tudor Calibre MT5450-U, 65 Hours Power Reserve, Automatic, COSC & METAS Certified
Case Diameter :	39mm
Bracelet / Strap :	Jubilee 5-link Stainless Steel
Features :	True flyer GMT, 200m depth rating, Anti-magnetic to 15,000 gauss

Condition

Brand New, Unworn Condition, Complete Original Set with Box and Papers dated May 2026.

Warranty

5 year original manufacturer warranty.