Ublast - Automatic Diver GMT - 20 ATM - UBDGM40BKG - Men - 2026






Over six years of professional experience in watches with extensive collector network.
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 134906 reviews
Rated Excellent on Trustpilot.
Automatic Diver GMT - 20 ATM, reference UBDGM40BKG, 2020+, automatic movement.
Description from the seller
Official Authorized Dealer
UBLAST is an Italian registered brand.
Watches are made with carefully selected quality materials and finished with extreme attention to detail; each individual piece undergoes rigorous checks, including functional, shock/impact, and precision tests. All watches are new, never worn, and come with original box, documents, tag, certificate of authenticity, and a two-year international warranty stamped at the time of purchase.
We offer the model "UBLAST DIVER GMT / Dual Time"
Stainless steel case 316L – bi-directional bezel 120 clicks – GMT Seiko NH34 automatic movement - mineral glass
Function: hours - minutes - seconds – date - GMT
Case: 40x14 mm stainless steel 316L
Dial: date window at 3 o'clock - luminescent indices and hands
Bezel: bi-directional rotating steel bezel, 120 clicks
Movement: Japanese automatic GMT Seiko NH34 - 21,600 vph - power reserve approximately 41 hours – 24 jewels
Glass: mineral with magnifier
Crown: stainless steel 316L – screwed down at 3 o'clock
Case back: stainless steel 316L - screw-down
Bracelet: stainless steel 316L – (about 250 mm including case)
Clasp: stainless steel 316L - deployant
Water resistance: 20 ATM - 200 meters
Gender: men
Weight: approximately 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 at the time of shipment, but we guarantee the original box of the brand)
INFO
The photos were taken on the actual watch; please note that colors may vary slightly due to reflections of light, shadows, or direct light during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with metal bracelets and leather, rubber, Nato, etc., links can be removed, adjusted/shortened with the necessary tools; if you are not able to do it yourself, please consult a professional. All automatic watches must be wound initially by hand via the crown because wrist movement alone is not enough to maintain the required power reserve.
RULE FOR ALL WATCHES WITH A 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, gently unscrew the crown counterclockwise. Do not forget to tighten the crown properly after you have finished adjusting.)
LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional taxes within the European Union
EXTRA-EUROPEAN SHIPMENT - WORLDWIDE
All import costs to your country outside the European Union (duty and customs) are entirely the responsibility of the buyer; we are not responsible for any additional costs
FEEDBACK
Your feedback is very important to us and helps us offer a better service to our buyers. If we have made an error by any chance, please contact us before leaving negative or neutral feedback. Our goal is to leave all our buyers satisfied with their purchase. Happy bidding
Seller's Story
Official Authorized Dealer
UBLAST is an Italian registered brand.
Watches are made with carefully selected quality materials and finished with extreme attention to detail; each individual piece undergoes rigorous checks, including functional, shock/impact, and precision tests. All watches are new, never worn, and come with original box, documents, tag, certificate of authenticity, and a two-year international warranty stamped at the time of purchase.
We offer the model "UBLAST DIVER GMT / Dual Time"
Stainless steel case 316L – bi-directional bezel 120 clicks – GMT Seiko NH34 automatic movement - mineral glass
Function: hours - minutes - seconds – date - GMT
Case: 40x14 mm stainless steel 316L
Dial: date window at 3 o'clock - luminescent indices and hands
Bezel: bi-directional rotating steel bezel, 120 clicks
Movement: Japanese automatic GMT Seiko NH34 - 21,600 vph - power reserve approximately 41 hours – 24 jewels
Glass: mineral with magnifier
Crown: stainless steel 316L – screwed down at 3 o'clock
Case back: stainless steel 316L - screw-down
Bracelet: stainless steel 316L – (about 250 mm including case)
Clasp: stainless steel 316L - deployant
Water resistance: 20 ATM - 200 meters
Gender: men
Weight: approximately 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 at the time of shipment, but we guarantee the original box of the brand)
INFO
The photos were taken on the actual watch; please note that colors may vary slightly due to reflections of light, shadows, or direct light during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with metal bracelets and leather, rubber, Nato, etc., links can be removed, adjusted/shortened with the necessary tools; if you are not able to do it yourself, please consult a professional. All automatic watches must be wound initially by hand via the crown because wrist movement alone is not enough to maintain the required power reserve.
RULE FOR ALL WATCHES WITH A 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, gently unscrew the crown counterclockwise. Do not forget to tighten the crown properly after you have finished adjusting.)
LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional taxes within the European Union
EXTRA-EUROPEAN SHIPMENT - WORLDWIDE
All import costs to your country outside the European Union (duty and customs) are entirely the responsibility of the buyer; we are not responsible for any additional costs
FEEDBACK
Your feedback is very important to us and helps us offer a better service to our buyers. If we have made an error by any chance, please contact us before leaving negative or neutral feedback. Our goal is to leave all our buyers satisfied with their purchase. Happy bidding
