Tudor Super Clone Watches 1:1 Black Bay 58 GMT m7939g1a0nru-0001 Black Dial 39mm

Original price was: $980.00.Current price is: $680.00.

ZF Edition — Riveted Stainless Steel Bracelet

The ZF Tudor Black Bay 58 GMT (m7939g1a0nru-0001) represents a significant technical milestone in replica horology, successfully miniaturizing the GMT complication into the highly sought-after 39mm case format. By achieving the precise 12.4mm thickness of the genuine piece, ZF has eliminated the historical bulk associated with earlier Tudor GMT clones, establishing a new benchmark for wearability on medium and smaller wrists. The factory’s attention to the specific vintage proportions makes this iteration a standout in the current collector market.

Powered by a modified Asian clone automatic movement, this caliber features a true independently adjustable GMT hand for tracking a second time zone. The architecture operates at 28,800 vibrations per hour, delivering smooth sweeping action for the signature Snowflake hands while maintaining stable amplitude. Power reserve is rated at approximately 36 hours, providing reliable daily performance when worn regularly.

The 39mm case is milled from solid 316L stainless steel, featuring precise alternating brushed and polished surfaces that transition seamlessly into the vintage-inspired riveted bracelet. The bidirectional anodized aluminum Coke bezel accurately captures the muted black and burgundy tones of the original, complete with gilt numerals. On the domed matte black dial, the rose gold-tone hour markers and minute track exhibit excellent print depth, exuding a warm mid-century aviation aesthetic.

  • Movement: Asian Clone Automatic GMT — Approximately 36 hours
  • Case Material: 316L Stainless Steel, 39mm diameter, 12.4mm thickness, 150g weight
  • Bezel: Bidirectional anodized aluminum black and burgundy insert with gilt numerals
  • Crystal: Domed sapphire with interior anti-reflective coating
  • Bracelet: 316L stainless steel riveted 3-link, brushed and polished finish with folding clasp
  • Water Resistance: 30m stated rating — professional pressure test recommended before swimming. Do not operate chronograph pushers or the crown while the watch is submerged.

This piece appeals to collectors who appreciate mid-century aviation aesthetics but require modern mechanical reliability. The reduced 12.4mm case profile makes it an exceptionally versatile travel watch for wrists of all sizes, offering serious horological merit without the bulk.

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Description

ZF Tudor Black Bay 58 GMT Coke 39mm

A masterclass in proportion, the ZF BB58 GMT finally brings accurate vintage travel functionality to a wearable 12.4mm profile.

Powered by Asian Clone Automatic GMT

The heart of this piece is a modified Asian clone GMT caliber, engineered to replicate the functionality of the genuine Tudor MT5450-U. It supports an independently set 24-hour hand, allowing for rapid time zone adjustments without stopping the balance wheel. The regulation mechanism ensures stable amplitude across various wearing conditions. Before dispatch, all movements undergo our strict QC standards to verify beat rate, amplitude health, and complication engagement.

⏱ Accuracy Profile:

Standard clone base movements in this configuration typically run at ±10–15 seconds per day, depending on resting position and mainspring tension.

  • ✅ Power Reserve: Approximately 36 hours
  • ✅ Complications: True GMT functionality, central hours, minutes, and sweeping seconds
  • ✅ Winding Direction: Bidirectional

Technical Specifications

THE BUILD316L Stainless Steel

Milled to a precise 39mm diameter and 12.4mm thickness, matching the highly anticipated slimmer case profile of the genuine article. Features accurate beveling on the lugs.

THE DIALDomed Matte Black

Features vintage gilt (gold-tone) chapter ring and indices. The iconic Snowflake hands and luminous-tipped GMT hand exhibit even lume application and sharp edge finishing.

THE BEZELAnodized Aluminum

Bidirectional 24-click mechanism featuring the coveted black and burgundy Coke colorway. The gilt 24-hour numerals are deeply applied, avoiding the flat printed look of inferior clones.

THE BRACELETRiveted Stainless Steel

Accurately replicates the 1950s stepped rivet link design with alternating brushed and polished finishes. Features solid end links and a secure folding clasp.

Why ZF for This Reference?

Many collectors ask: Why not TW Factory or other market alternatives?

ZF remains the undisputed leader for the Black Bay 58 line due to their proprietary case construction that accurately achieves the 12.4mm thickness of the genuine article, whereas lesser factories rely on thicker, off-the-shelf GMT cases. The anodized aluminum bezel insert also captures the correct muted burgundy tone, avoiding the overly saturated, bright reds found in early prototype clones.

Full Disclosure: The bidirectional bezel action, while secure and visually accurate, can exhibit slightly more back-play than the ultra-crisp tolerances of the retail Tudor mechanism.

LIVE PREVIEW

Data Sheet

MODEL REFERENCE m7939g1a0nru-0001
FACTORY / VERSION ZF Edition
MOVEMENT Asian Clone Automatic GMT
CASE MATERIAL 316L Stainless Steel
WEIGHT & THICKNESS 150g | 12.4mm
CRYSTAL & LUME Domed Sapphire | Super-LumiNova
DIMENSIONS 39mm × 47.8mm × 12.4mmManual measurements — minor tolerances apply.
WATER RESISTANCE 30m stated rating — professional pressure test recommended before swimming

Collector Q&A

Q: Does the GMT hand function independently like the genuine Tudor MT5450-U?

A: Yes, the modified clone movement features an independently adjustable GMT hand for tracking a second time zone, operating smoothly via the crown.

Q: Is the case thickness accurate to the genuine Black Bay 58 GMT?

A: Yes. ZF has successfully engineered the case to measure exactly 12.4mm thick, eliminating the bulky profile historically seen in 41mm Black Bay GMT replicas.

Q: Are the rivets on the bracelet structural or cosmetic?

A: Like the genuine Tudor bracelet, the visible rivet heads on the outer links are cosmetic, paying homage to 1950s designs, while the links themselves are secured with standard removable pins for easy sizing.

Q: What is a known technical quirk of this specific ZF release?

A: While the bezel insert colors are highly accurate, the bidirectional 24-click bezel mechanism can exhibit a slight amount of back-play compared to the ultra-crisp tolerances of the retail Tudor piece.

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Super Clone Watches – Tudor Black Bay 58 GMT m7939g1a0nru-0001

Tudor Super Clone Watches 1:1 Black Bay 58 GMT m7939g1a0nru-0001 Black Dial 39mm

Original price was: $980.00.Current price is: $680.00.