Ublast - Automatic Diver GMT - 20 ATM - UBDGMJ40BGN - Men - 2026






Expert and certified watch technician with over 15 years of experience, author and founder of CHLB
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Model Automatic Diver GMT - 20 ATM, reference UBDGMJ40BGN, period 2026, with automatic movement in a 40 mm stainless steel case, new and unworn, supplied with original box, papers and international warranty.
Description from the seller
UBLAST is a registered Italian brand. The watches are made with selected quality materials and finished with great care to detail; each individual piece undergoes strict controls, including functional, shock, and precision tests. All watches are new, never worn, and are supplied with the original box, documents, tag, certificate of authenticity, and an international 2-year warranty stamped at the time of purchase.
We offer the model "UBLAST DIVER GMT / Dual Time"
Case: 316L stainless steel – bi-directional bezel 120 clicks – GMT automatic Seiko NH34 - mineral glass
Function: hours - minutes - seconds – date - GMT
Case: 40x14 mm stainless steel 316L
Dial: date window at 3 o'clock - luminescent indexes and hands
Bezel: bidirectional rotating steel bezel, 120 clicks
Movement: Japanese automatic GMT Seiko NH34 - 21,600 alternations/hour - power reserve ~41 hours – 24 jewels
Glass: mineral with cyclops
crown: 316L stainless steel – screw-down at 3 o'clock
Case back: 316L stainless steel - screw-down
Strap: 316L stainless steel – Jubilee - (approximately 250 mm including case)
Clasp: 316L stainless steel - deployant
Water resistance: 20 ATM - 200 meters
Gender: Men
Weight: ~150 g
CONDITIONS
Brand new – never worn – 2-year international warranty included
CONTENT
Full set (The watch box may differ from the photos depending on stock available in the warehouse at the time of shipment, but we guarantee the original branded box)
INFO
The photos were taken on the actual watch; please note that colors may vary slightly in shade due to light reflections, shadows, or direct light during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with steel bracelets and leather, rubber, NATO, etc., it is possible to remove links, punch/shorten with the necessary tools; if you are not able to do it yourself, please seek a professional
All automatic watches require initial winding via the crown in addition to wrist movement to achieve the necessary power reserve.
RULE FOR ALL WATCHES WITH DATE
To avoid possible damage to the movement, please do not set the date with the crown when the time is between 21:00 and 03:00. It is recommended to set the date with the crown when the time is between 03:05 and 20:55. (Some models have a screw-down crown; for settings, carefully unscrew the crown counterclockwise. Do not forget to properly screw the crown back in after adjusting the desired settings.)
LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENTS
No additional tax to be paid within the European Union
EXTRA-EUROPEAN SHIPMENTS - WORLDWIDE
All extra import costs to your country outside the European Union (duties and customs) are solely the buyer’s responsibility; we are not liable for any additional charges
FEEDBACK
Your feedback is very important to us and helps us offer better service to our buyers. If we have made a mistake by any chance, please contact us before leaving negative or neutral feedback. Our goal is to ensure all our buyers are satisfied with their purchase. Happy bidding.
Seller's Story
Translated by Google TranslateUBLAST is a registered Italian brand. The watches are made with selected quality materials and finished with great care to detail; each individual piece undergoes strict controls, including functional, shock, and precision tests. All watches are new, never worn, and are supplied with the original box, documents, tag, certificate of authenticity, and an international 2-year warranty stamped at the time of purchase.
We offer the model "UBLAST DIVER GMT / Dual Time"
Case: 316L stainless steel – bi-directional bezel 120 clicks – GMT automatic Seiko NH34 - mineral glass
Function: hours - minutes - seconds – date - GMT
Case: 40x14 mm stainless steel 316L
Dial: date window at 3 o'clock - luminescent indexes and hands
Bezel: bidirectional rotating steel bezel, 120 clicks
Movement: Japanese automatic GMT Seiko NH34 - 21,600 alternations/hour - power reserve ~41 hours – 24 jewels
Glass: mineral with cyclops
crown: 316L stainless steel – screw-down at 3 o'clock
Case back: 316L stainless steel - screw-down
Strap: 316L stainless steel – Jubilee - (approximately 250 mm including case)
Clasp: 316L stainless steel - deployant
Water resistance: 20 ATM - 200 meters
Gender: Men
Weight: ~150 g
CONDITIONS
Brand new – never worn – 2-year international warranty included
CONTENT
Full set (The watch box may differ from the photos depending on stock available in the warehouse at the time of shipment, but we guarantee the original branded box)
INFO
The photos were taken on the actual watch; please note that colors may vary slightly in shade due to light reflections, shadows, or direct light during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with steel bracelets and leather, rubber, NATO, etc., it is possible to remove links, punch/shorten with the necessary tools; if you are not able to do it yourself, please seek a professional
All automatic watches require initial winding via the crown in addition to wrist movement to achieve the necessary power reserve.
RULE FOR ALL WATCHES WITH DATE
To avoid possible damage to the movement, please do not set the date with the crown when the time is between 21:00 and 03:00. It is recommended to set the date with the crown when the time is between 03:05 and 20:55. (Some models have a screw-down crown; for settings, carefully unscrew the crown counterclockwise. Do not forget to properly screw the crown back in after adjusting the desired settings.)
LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENTS
No additional tax to be paid within the European Union
EXTRA-EUROPEAN SHIPMENTS - WORLDWIDE
All extra import costs to your country outside the European Union (duties and customs) are solely the buyer’s responsibility; we are not liable for any additional charges
FEEDBACK
Your feedback is very important to us and helps us offer better service to our buyers. If we have made a mistake by any chance, please contact us before leaving negative or neutral feedback. Our goal is to ensure all our buyers are satisfied with their purchase. Happy bidding.
