
Ref. M7939G1A0NRU-0001
Tudor's Black Bay 58 GMT, reference M7939G1A0NRU-0001, is a GMT watch with a 39mm steel case. The case measures 12.8mm thick, with lugs set 20mm apart. A domed sapphire crystal sits over the black dial, which carries luminous hands and indices for legibility in low light. The bidirectional rotating bezel, finished in black and burgundy aluminium, gives the watch its "Coke" nickname and doubles as the GMT scale. Inside is the manufacture calibre MT5450-U, a self-winding movement certified as a Master Chronometer, with 65 hours of power reserve. The watch is fitted with a rivet-style steel bracelet and a folding steel clasp. Water resistance reaches 200 metres, backed by the screw-down crown.
TECHNICAL SPECIFICATIONS
GENERAL
Gender
Men
CASE
Diameter
39mm
Thickness
12.8mm
Lug Width
20mm
Case Material
Steel
Water Resistance
200m
Crystal
Sapphire Crystal
Bezel Material
Steel
MOVEMENT
Movement Type
Automatic
Caliber
MT5450-U
Power Reserve
65h
Frequency
28,800 vph
Jewels
34 jewels
DIAL
Dial Color
Black
BRACELET/STRAP
Bracelet/Strap
Steel
Clasp Type
Fold Clasp
Clasp Material
Steel
