Ublast - Automatic Diver GMT - 20 ATM - UBDGMJ40BGN - Men - 2026
03
days
03
hours
16
minutes
53
seconds
Current bid
€ 200
Reserve price not met
Expert
Selected by Alfonso Minondo
Over six years of professional experience in watches with extensive collector network.
Retail Estimate € 800 - € 900
 | €200 | |
|---|---|---|
| €180 | |
 | €160 | |
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The new UBLAST Automatic Diver GMT - 20 ATM (ref. UBDGMJ40BGN) is a 40 mm stainless-steel watch with an automatic Seiko NH34 GMT movement and 200 m water resistance.
AI-assisted summary
Description from the seller
Official Authorized Dealer
UBLAST is a registered Italian brand.
The watches are made from carefully selected quality materials and finished with meticulous attention to detail. Every single piece undergoes rigorous checks, including functional, durability, and accuracy tests. All watches are new and unworn, and come with the original box, documents, tags, certificate of authenticity, and a 2-year international warranty, stamped at the time of purchase.
We are offering the “UBLAST DIVER GMT / Dual Time” model
316L stainless steel case – 120-click bidirectional bezel – Seiko NH34 GMT automatic movement – mineral crystal
Functions: hours – minutes – seconds – date – GMT
Case: 40 x 14 mm, 316L stainless steel
Dial: date display at 3 o’clock – luminous indexes and hands
Bezel: bidirectional rotating steel bezel, 120 clicks
Movement: Japanese Seiko NH34 automatic GMT – frequency of 21,600 vibrations per hour – approximately 41-hour power reserve – 24 jewels
Crystal: mineral with magnifying lens
Crown: 316L stainless steel – screw-down at 3 o’clock
Case back: 316L stainless steel – screw-down
Bracelet: 316L stainless steel – Jubilee – approximately 250 mm, including the case
Clasp: 316L stainless steel – deployant
Water resistance: 20 ATM – 200 meters
Gender: men’s
Weight: approximately 150 g
CONDITION
New and unworn – 2-year international warranty included
CONTENTS
Full set (The watch box may differ from the photos, depending on stock available in our warehouse at the time of shipping, but we guarantee that it is the brand’s original box.)
INFO
The photos were taken of the actual watch. Please note that the color may vary slightly in tone due to reflections, shadows, or direct light on the watch during photography.
IMPORTANT NOTE FOR FIRST USE
For all watches with a steel bracelet or leather, rubber, NATO, etc. straps, links can be removed and straps can be pierced/shortened at home, but only with the necessary tools. If you are unable to do this yourself, we kindly ask you to contact a professional.
All automatic watches need to be wound using the crown before first use; wrist movement alone is not enough to maintain the necessary power reserve.
RULE FOR ALL WATCHES WITH A DATE DISPLAY
To avoid possible damage to the watch mechanism, please do not set the date using the crown when the watch time is between 9:00 p.m. and 3:00 a.m. We recommend setting the date using the crown when the time is between 3:05 a.m. and 8:55 p.m. (Some watch models have a screw-down crown; to make adjustments, gently unscrew the crown counterclockwise. Remember to screw the crown securely back in place after making the desired adjustments.)
LOGISTICS/WAREHOUSE
All orders are shipped from our warehouse located in ITALY.
DOMESTIC AND EUROPEAN SHIPPING
No additional taxes are payable within the European Union.
SHIPPING OUTSIDE EUROPE – WORLDWIDE
All additional import costs for your country outside the European Union (“duties and customs”) are the buyer’s sole responsibility. We are not responsible for any additional costs.
FEEDBACK
Your feedback is very important to us and helps us provide better service to our buyers. If we have made a mistake, we kindly ask you to contact us before leaving negative or neutral feedback. Our goal is to ensure that all our buyers are satisfied with their purchase. Happy bidding!
Seller's Story
Welcome to Watches for You, the Italian reference point with years of experience in the watchmaking sector. As official distributors, we offer a safe purchasing experience based on three pillars: professionalism I authenticity I and customer care. -------- WARRANTY AND AUTHENTICITY: Each watch in our shop is: new, original and never worn, accompanied by a 24-month international warranty. Subject to a rigorous technical inspection before shipping to guarantee perfect functioning. ------- LOGISTICS AND SHIPMENTS: We handle every order with maximum priority and ultra-strong 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, 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 reimburse shipping costs already paid. Please do not insist. ------ INSURANCE AND RECEIPT OF GOODS: We monitor every shipment to its destination, but we require your cooperation. Delivery verification: In case of damage or tampering, always sign with a note of reservation. Report the incident immediately to the courier and to us. Insurance terms: Any failed deliveries must be reported within 7 days from the scheduled 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 from payment. It will not be possible to issue invoices to private individuals, and beyond that time limit. Warranty Activation: For the warranty, the originality certificate, the instruction booklet, and the purchase receipt from Catawiki 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 original accessories, with the box intact. Responsibility: The return shipping costs and the risk 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 I authenticity I and passion at your service I
Translated by Google TranslateOfficial Authorized Dealer
UBLAST is a registered Italian brand.
The watches are made from carefully selected quality materials and finished with meticulous attention to detail. Every single piece undergoes rigorous checks, including functional, durability, and accuracy tests. All watches are new and unworn, and come with the original box, documents, tags, certificate of authenticity, and a 2-year international warranty, stamped at the time of purchase.
We are offering the “UBLAST DIVER GMT / Dual Time” model
316L stainless steel case – 120-click bidirectional bezel – Seiko NH34 GMT automatic movement – mineral crystal
Functions: hours – minutes – seconds – date – GMT
Case: 40 x 14 mm, 316L stainless steel
Dial: date display at 3 o’clock – luminous indexes and hands
Bezel: bidirectional rotating steel bezel, 120 clicks
Movement: Japanese Seiko NH34 automatic GMT – frequency of 21,600 vibrations per hour – approximately 41-hour power reserve – 24 jewels
Crystal: mineral with magnifying lens
Crown: 316L stainless steel – screw-down at 3 o’clock
Case back: 316L stainless steel – screw-down
Bracelet: 316L stainless steel – Jubilee – approximately 250 mm, including the case
Clasp: 316L stainless steel – deployant
Water resistance: 20 ATM – 200 meters
Gender: men’s
Weight: approximately 150 g
CONDITION
New and unworn – 2-year international warranty included
CONTENTS
Full set (The watch box may differ from the photos, depending on stock available in our warehouse at the time of shipping, but we guarantee that it is the brand’s original box.)
INFO
The photos were taken of the actual watch. Please note that the color may vary slightly in tone due to reflections, shadows, or direct light on the watch during photography.
IMPORTANT NOTE FOR FIRST USE
For all watches with a steel bracelet or leather, rubber, NATO, etc. straps, links can be removed and straps can be pierced/shortened at home, but only with the necessary tools. If you are unable to do this yourself, we kindly ask you to contact a professional.
All automatic watches need to be wound using the crown before first use; wrist movement alone is not enough to maintain the necessary power reserve.
RULE FOR ALL WATCHES WITH A DATE DISPLAY
To avoid possible damage to the watch mechanism, please do not set the date using the crown when the watch time is between 9:00 p.m. and 3:00 a.m. We recommend setting the date using the crown when the time is between 3:05 a.m. and 8:55 p.m. (Some watch models have a screw-down crown; to make adjustments, gently unscrew the crown counterclockwise. Remember to screw the crown securely back in place after making the desired adjustments.)
LOGISTICS/WAREHOUSE
All orders are shipped from our warehouse located in ITALY.
DOMESTIC AND EUROPEAN SHIPPING
No additional taxes are payable within the European Union.
SHIPPING OUTSIDE EUROPE – WORLDWIDE
All additional import costs for your country outside the European Union (“duties and customs”) are the buyer’s sole responsibility. We are not responsible for any additional costs.
FEEDBACK
Your feedback is very important to us and helps us provide better service to our buyers. If we have made a mistake, we kindly ask you to contact us before leaving negative or neutral feedback. Our goal is to ensure that all our buyers are satisfied with their purchase. Happy bidding!
Seller's Story
Welcome to Watches for You, the Italian reference point with years of experience in the watchmaking sector. As official distributors, we offer a safe purchasing experience based on three pillars: professionalism I authenticity I and customer care. -------- WARRANTY AND AUTHENTICITY: Each watch in our shop is: new, original and never worn, accompanied by a 24-month international warranty. Subject to a rigorous technical inspection before shipping to guarantee perfect functioning. ------- LOGISTICS AND SHIPMENTS: We handle every order with maximum priority and ultra-strong 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, 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 reimburse shipping costs already paid. Please do not insist. ------ INSURANCE AND RECEIPT OF GOODS: We monitor every shipment to its destination, but we require your cooperation. Delivery verification: In case of damage or tampering, always sign with a note of reservation. Report the incident immediately to the courier and to us. Insurance terms: Any failed deliveries must be reported within 7 days from the scheduled 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 from payment. It will not be possible to issue invoices to private individuals, and beyond that time limit. Warranty Activation: For the warranty, the originality certificate, the instruction booklet, and the purchase receipt from Catawiki 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 original accessories, with the box intact. Responsibility: The return shipping costs and the risk 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 I authenticity I and passion at your service I
Translated by Google TranslateDetails
Brand
Ublast
Gender
Men
Model
Automatic Diver GMT - 20 ATM
Band material
Steel
Reference number
UBDGMJ40BGN
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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