Ublast - Diver 20 ATM - UB2D4012BKB - Men - 2026

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Alfonso Minondo
Expert
Selected by Alfonso Minondo

Over six years of professional experience in watches with extensive collector network.

Retail Estimate  € 600 - € 700
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Diver 20 ATM with reference UB2D4012BKB, dating to 2020+, featuring an automatic Japanese Seiko NH35 movement in a 40 mm stainless steel case, long steel bracelet, new with box and papers and an international 2‑year warranty, sold insured for men.

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; each single piece undergoes rigorous checks, including functional, strength, and precision tests. All watches are new, never worn, and are supplied with the original box, documents, tag, certificate of authenticity, and international 2-year warranty stamped at the time of purchase.

We offer the model "UBLAST DIVER 20 ATM"
Case: 316L stainless steel - mineral glass - Japanese automatic Seiko NH35

Function: hours - minutes - seconds – date
Case: 40x12mm – 316L stainless steel - black PVD
Dial: date window at 3 o’clock – luminescent indices and hands
Bezel: unidirectional 120-click rotating bezel – luminescent insert
Movement: Japanese automatic Seiko NH35 - (24 jewels - 41 hours power reserve)
Crystal: mineral with date magnifier
Crown: 316L stainless steel – screwed at 3 o’clock
Case back: 316L stainless steel – screwed
Strap: 316L stainless steel – (about 220 mm including case) - black PVD
Clasp: 316L stainless steel – deployant with safety buckle
Water resistance: 20 ATM - 200 meters
Gender: men
Weight: about 140 g

CONDITIONS
New, never worn – international 2-year 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 color may vary slightly 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 straps, etc., it is possible to remove links, punch/shorten with the appropriate tools; if you are not able to do it yourself, please consult a professional.
All automatic watches must be wound initially via the crown as well, since wrist movement alone is not sufficient to maintain the required power reserve.

RULE FOR ALL WATCHES WITH DATE FUNCTION
To avoid potential 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 when the time is between 03:05 and 20:55. Some models have a screw-down crown; for adjustments, gently unscrew the crown counterclockwise. Do not forget to securely screw the crown back after adjusting.

LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY

NATIONAL AND EUROPEAN SHIPPING
No additional taxes within the European Union

SHIPPING OUTSIDE EUROPE - WORLD
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
Feedback is very important to us and helps us offer better service to our buyers. If we have made an error, please contact us before leaving negative or neutral feedback; our goal is to ensure all buyers are satisfied with their purchase. Happy Auction

Seller's Story

Translated by Google Translate

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; each single piece undergoes rigorous checks, including functional, strength, and precision tests. All watches are new, never worn, and are supplied with the original box, documents, tag, certificate of authenticity, and international 2-year warranty stamped at the time of purchase.

We offer the model "UBLAST DIVER 20 ATM"
Case: 316L stainless steel - mineral glass - Japanese automatic Seiko NH35

Function: hours - minutes - seconds – date
Case: 40x12mm – 316L stainless steel - black PVD
Dial: date window at 3 o’clock – luminescent indices and hands
Bezel: unidirectional 120-click rotating bezel – luminescent insert
Movement: Japanese automatic Seiko NH35 - (24 jewels - 41 hours power reserve)
Crystal: mineral with date magnifier
Crown: 316L stainless steel – screwed at 3 o’clock
Case back: 316L stainless steel – screwed
Strap: 316L stainless steel – (about 220 mm including case) - black PVD
Clasp: 316L stainless steel – deployant with safety buckle
Water resistance: 20 ATM - 200 meters
Gender: men
Weight: about 140 g

CONDITIONS
New, never worn – international 2-year 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 color may vary slightly 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 straps, etc., it is possible to remove links, punch/shorten with the appropriate tools; if you are not able to do it yourself, please consult a professional.
All automatic watches must be wound initially via the crown as well, since wrist movement alone is not sufficient to maintain the required power reserve.

RULE FOR ALL WATCHES WITH DATE FUNCTION
To avoid potential 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 when the time is between 03:05 and 20:55. Some models have a screw-down crown; for adjustments, gently unscrew the crown counterclockwise. Do not forget to securely screw the crown back after adjusting.

LOGISTICS/WAREHOUSE
All orders ship from our warehouse located in ITALY

NATIONAL AND EUROPEAN SHIPPING
No additional taxes within the European Union

SHIPPING OUTSIDE EUROPE - WORLD
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
Feedback is very important to us and helps us offer better service to our buyers. If we have made an error, please contact us before leaving negative or neutral feedback; our goal is to ensure all buyers are satisfied with their purchase. Happy Auction

Seller's Story

Translated by Google Translate

Details

Brand
Ublast
Gender
Men
Model
Diver 20 ATM
Band material
Steel
Reference Number
UB2D4012BKB
Band length
Long (over 200 mm)
Shipped Insured
Yes
Repainted dial
No
Period
2020+
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
ItalyVerified
9201
Objects sold
100%
protop

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