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






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Automatic Diver GMT - 20 ATM, reference UBDGMJ40BGN, 40 mm stainless steel case, Japanese automatic GMT Seiko NH34 movement, 200 m water resistance, long steel Jubilee bracelet, includes original box, papers and international warranty.
Description from the seller
Official Authorized Dealer
UBLAST is an Italian registered brand.
The watches are made with carefully selected quality materials and finished with extreme care for the details; every single piece undergoes rigorous checks, including functional, water resistance, and precision tests. All watches are new, never worn, and are supplied with the original box, documents, tags, certificate of authenticity, and a two-year international warranty, stamped at the time of purchase.
We offer the model "UBLAST DIVER GMT / Dual Time"
316L stainless steel case – bi-directional 120-click bezel – GMT Seiko NH34 automatic – mineral glass
Function: hours - minutes - seconds – date - GMT
Case: 40x14 mm stainless steel 316L
Dial: date at 3 o'clock - luminescent indices and hands
Bezel: bi-directional stainless steel, 120 clicks
Movement: Japanese automatic GMT Seiko NH34 - hourly oscillation 21,600 beats/hour - power reserve ~41 hours – 24 jewels
Glass: mineral with magnifier
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
New, never worn – includes two-year international warranty
CONTENT
Complete set (The watch box may differ from the photos depending on stock available at the time of shipment, but we guarantee the original box of the brand)
INFO
The photos are taken on the actual watch; please note that color may have slight tonal variations due to light reflections, shadows, or direct lighting during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with steel bracelets and leather, rubber, nato, etc., it is possible to remove links, pierce/shorten with tools; if you are not able to do it yourself, please consult a professional. All automatic watches require charging from the crown at first use; wrist movement alone is not enough to maintain the necessary power reserve.
RULE FOR ALL WATCHES WITH DATE
To avoid potential damage to the movement, please do not set the date with the crown when the watch 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 you must gently unscrew the crown counterclockwise. Remember to securely screw the crown back after adjusting the desired settings.)
LOGISTICS/WAREHOUSE
All orders are shipped from our warehouse in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional tax to pay within the European Union
REST OF THE WORLD SHIPMENT
All import costs to your country outside the European Union (duty and customs) are solely the buyer’s responsibility; we are not liable for any additional costs
FEEDBACK
Your feedback is very important to us and helps us provide a better service to our buyers. If we have made an error, please kindly contact us before leaving negative or neutral feedback; our goal is to ensure all buyers are satisfied with their purchase. Happy bidding.
Seller's Story
Official Authorized Dealer
UBLAST is an Italian registered brand.
The watches are made with carefully selected quality materials and finished with extreme care for the details; every single piece undergoes rigorous checks, including functional, water resistance, and precision tests. All watches are new, never worn, and are supplied with the original box, documents, tags, certificate of authenticity, and a two-year international warranty, stamped at the time of purchase.
We offer the model "UBLAST DIVER GMT / Dual Time"
316L stainless steel case – bi-directional 120-click bezel – GMT Seiko NH34 automatic – mineral glass
Function: hours - minutes - seconds – date - GMT
Case: 40x14 mm stainless steel 316L
Dial: date at 3 o'clock - luminescent indices and hands
Bezel: bi-directional stainless steel, 120 clicks
Movement: Japanese automatic GMT Seiko NH34 - hourly oscillation 21,600 beats/hour - power reserve ~41 hours – 24 jewels
Glass: mineral with magnifier
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
New, never worn – includes two-year international warranty
CONTENT
Complete set (The watch box may differ from the photos depending on stock available at the time of shipment, but we guarantee the original box of the brand)
INFO
The photos are taken on the actual watch; please note that color may have slight tonal variations due to light reflections, shadows, or direct lighting during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with steel bracelets and leather, rubber, nato, etc., it is possible to remove links, pierce/shorten with tools; if you are not able to do it yourself, please consult a professional. All automatic watches require charging from the crown at first use; wrist movement alone is not enough to maintain the necessary power reserve.
RULE FOR ALL WATCHES WITH DATE
To avoid potential damage to the movement, please do not set the date with the crown when the watch 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 you must gently unscrew the crown counterclockwise. Remember to securely screw the crown back after adjusting the desired settings.)
LOGISTICS/WAREHOUSE
All orders are shipped from our warehouse in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional tax to pay within the European Union
REST OF THE WORLD SHIPMENT
All import costs to your country outside the European Union (duty and customs) are solely the buyer’s responsibility; we are not liable for any additional costs
FEEDBACK
Your feedback is very important to us and helps us provide a better service to our buyers. If we have made an error, please kindly contact us before leaving negative or neutral feedback; our goal is to ensure all buyers are satisfied with their purchase. Happy bidding.
