Ublast - Automatic Diver GMT - 20 ATM - UBDGM40BBU - Men - 2026
04
days
07
hours
37
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50
seconds
Starting bid
€ 1
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Expert
Selected by Alfonso Minondo
Over six years of professional experience in watches with extensive collector network.
Retail Estimate € 700 - € 800
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UBLAST Automatic Diver GMT, reference UBDGM40BBU, a 40 mm stainless steel automatic GMT diver with Seiko NH34 movement, 20 ATM water resistance, new and unworn, with original box, papers and a two-year international warranty.
AI-assisted summary
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 attention to detail; every single piece undergoes rigorous checks, including functional, durability, and precision tests. All watches are new, never worn, and come with the 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 – bidirectional 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: bidirectional stainless steel 120-click
Movement: Japanese automatic GMT Seiko NH34 - hourly beat 21,600 vph - power reserve about 41 hours – 24 jewels
Glass: mineral with cyclops
Crown: stainless steel 316L – screw-down at 3 o'clock
Caseback: 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: about 150 g
CONDITIONS
New, never worn – includes two-year international warranty
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 brand box)
INFO
The photos were taken on the actual watch; please note that colors may vary slightly due to light reflections, shadows, or direct light during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with metal bracelets and leather, rubber, nato, etc., it is possible to remove links, punch/shorten with the proper tools. If you are not able to do it yourself, please consult a professional. All automatic watches must be wound at first use, also via crown, as wrist movement alone is not sufficient to maintain 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, gently unscrew the crown counterclockwise. Don’t forget to securely screw the crown back in after adjusting.)
LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional tax to be paid within the European Union
OUTSIDE EUROPE – WORLDWIDE SHIPMENT
All import costs to your country outside the European Union (duties and customs) are the buyer’s responsibility; we are not liable for any additional costs
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 leave all our buyers satisfied with their purchase. Happy bidding.
Seller's Story
+++++ We are out of the office from September 16 to 26, inclusive. All shipments will resume normally starting September 27, 2026 - We apologize for the inconvenience +++++
Welcome to Watches for You, the Italian reference point with years of experience in the watchmaking industry. As official distributors, we offer a safe shopping experience based on three pillars: professionalism, authenticity, and customer care. -------- WARRANTY AND AUTHENTICITY: Every watch in our store is: new, original and never worn, accompanied by an international 24-month warranty. Subject to a rigorous technical check before shipment to ensure perfect operation. ------- LOGISTICS AND SHIPPING: We handle every order with the utmost priority and ultra-durable packaging. Processing: Within 24 business hours from payment. Tracking: Tracking code entered on Catawiki as soon as available. Multiple Shipments: If you have won multiple lots and the Catawiki system has calculated multiple shipments for you, contact us before paying the second order, so we can recalculate and reduce shipping costs for you; this rule applies exclusively to lots with reserve price.
Important: For tax reasons related to automatic invoicing, it is absolutely not possible to refund shipping costs already paid. Please do not insist. ------ INSURANCE AND RECEIPT OF GOODS: We monitor every shipment to destination, but we require your cooperation. Delivery verification: In case of damage or tampering, always sign with a reservation. Report the incident immediately to the courier and to us. Insurance terms: Any failed deliveries must be reported within 7 days of the expected date to activate the insurance procedures. --------- ADMINISTRATION AND INVOICING: We operate in full compliance with the Italian tax system. Corporate Invoices: We issue invoices only to companies with a VAT number, upon request via message within 24 hours of payment. It will not be possible to issue invoices to private individuals, and beyond that term. Activation of Warranty: For the warranty, the certificate of originality, the instruction booklet, and the Catawiki purchase receipt are required. ------ RIGHT OF WITHDRAWAL: The return is guaranteed if the watch is returned exactly as received. Conditions: Intact, never worn, with all protective films and the original accessories, with the box intact. Responsibility: The cost of return shipping and the responsibility of the goods during transport are borne by the buyer. ------ CUSTOMER SERVICE AND FEEDBACK: Our support is at your service 7 days a week, including holidays. We respond to every message via the Catawiki chat in chronological order. If you encounter any problem, we kindly ask you to contact us before leaving neutral or negative feedback. We will find the best solution together. Satisfaction is our goal. ------ THANKS YOU FOR CHOOSING WATCHES FOR YOU! Professionalism, authenticity, and passion at your service.
Translated by Google TranslateOfficial Authorized Dealer
UBLAST is an Italian registered brand. The watches are made with carefully selected quality materials and finished with extreme attention to detail; every single piece undergoes rigorous checks, including functional, durability, and precision tests. All watches are new, never worn, and come with the 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 – bidirectional 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: bidirectional stainless steel 120-click
Movement: Japanese automatic GMT Seiko NH34 - hourly beat 21,600 vph - power reserve about 41 hours – 24 jewels
Glass: mineral with cyclops
Crown: stainless steel 316L – screw-down at 3 o'clock
Caseback: 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: about 150 g
CONDITIONS
New, never worn – includes two-year international warranty
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 brand box)
INFO
The photos were taken on the actual watch; please note that colors may vary slightly due to light reflections, shadows, or direct light during shooting.
IMPORTANT NOTE FOR FIRST USE
For all watches with metal bracelets and leather, rubber, nato, etc., it is possible to remove links, punch/shorten with the proper tools. If you are not able to do it yourself, please consult a professional. All automatic watches must be wound at first use, also via crown, as wrist movement alone is not sufficient to maintain 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, gently unscrew the crown counterclockwise. Don’t forget to securely screw the crown back in after adjusting.)
LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional tax to be paid within the European Union
OUTSIDE EUROPE – WORLDWIDE SHIPMENT
All import costs to your country outside the European Union (duties and customs) are the buyer’s responsibility; we are not liable for any additional costs
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 leave all our buyers satisfied with their purchase. Happy bidding.
Seller's Story
+++++ We are out of the office from September 16 to 26, inclusive. All shipments will resume normally starting September 27, 2026 - We apologize for the inconvenience +++++
Welcome to Watches for You, the Italian reference point with years of experience in the watchmaking industry. As official distributors, we offer a safe shopping experience based on three pillars: professionalism, authenticity, and customer care. -------- WARRANTY AND AUTHENTICITY: Every watch in our store is: new, original and never worn, accompanied by an international 24-month warranty. Subject to a rigorous technical check before shipment to ensure perfect operation. ------- LOGISTICS AND SHIPPING: We handle every order with the utmost priority and ultra-durable packaging. Processing: Within 24 business hours from payment. Tracking: Tracking code entered on Catawiki as soon as available. Multiple Shipments: If you have won multiple lots and the Catawiki system has calculated multiple shipments for you, contact us before paying the second order, so we can recalculate and reduce shipping costs for you; this rule applies exclusively to lots with reserve price.
Important: For tax reasons related to automatic invoicing, it is absolutely not possible to refund shipping costs already paid. Please do not insist. ------ INSURANCE AND RECEIPT OF GOODS: We monitor every shipment to destination, but we require your cooperation. Delivery verification: In case of damage or tampering, always sign with a reservation. Report the incident immediately to the courier and to us. Insurance terms: Any failed deliveries must be reported within 7 days of the expected date to activate the insurance procedures. --------- ADMINISTRATION AND INVOICING: We operate in full compliance with the Italian tax system. Corporate Invoices: We issue invoices only to companies with a VAT number, upon request via message within 24 hours of payment. It will not be possible to issue invoices to private individuals, and beyond that term. Activation of Warranty: For the warranty, the certificate of originality, the instruction booklet, and the Catawiki purchase receipt are required. ------ RIGHT OF WITHDRAWAL: The return is guaranteed if the watch is returned exactly as received. Conditions: Intact, never worn, with all protective films and the original accessories, with the box intact. Responsibility: The cost of return shipping and the responsibility of the goods during transport are borne by the buyer. ------ CUSTOMER SERVICE AND FEEDBACK: Our support is at your service 7 days a week, including holidays. We respond to every message via the Catawiki chat in chronological order. If you encounter any problem, we kindly ask you to contact us before leaving neutral or negative feedback. We will find the best solution together. Satisfaction is our goal. ------ THANKS YOU FOR CHOOSING WATCHES FOR YOU! Professionalism, authenticity, and passion at your service.
Translated by Google TranslateDetails
Brand
Ublast
Gender
Men
Model
Automatic Diver GMT - 20 ATM
Band material
Steel
Reference number
UBDGM40BBU
Band length
Long (over 200 mm)
Shipped insured
Yes
Repainted dial
No
Period
2025+
Movement
Automatic
Case material
Stainless steel
Original box included
Yes
Original papers included
Yes
Case diameter
40 mm
Original warranty included
Yes
Condition
Unworn - no signs of wear
Year
2026
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