Ublast - Chronomatic - Automatic Swiss - REF.UBCHMCAL47BK - Calculator - Ltd. Edition - Men - 2026






Over 25 years' watch expertise and nearly 20 years as a goldsmith business owner.
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Chronomatic - Calculator - Ltd. Edition, Swiss Made automatic chronograph with Landeron Calibre 73, 316L stainless steel case 47×14 mm, opaque dial, leather strap 260 mm, water resistant to 30 ATM, new with original box, papers and a 2-year international warranty.
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 piece undergoes rigorous checks, including functional, shock resistance, 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 "CHRONOMATIC - CALCULATOR - LTD. EDITION - MECCANICA SVIZZERA"
Stainless steel 316L case – sapphire crystal – automatic chronograph with Swiss-made movement – genuine leather strap handmade in Italy
Function: calculator - chronograph - hours - minutes - seconds – date
Case: 47x14 mm stainless steel 316L – double crown
Dial: matte - date at 4 o'clock - luminescent applied indices and luminescent hands - three-counter chronograph with calculator function operable via double crown.
Bezel: stainless steel 316L
Movement: automatic chronograph Swiss Made Landeron caliber 73
Crystal: sapphire
Crown 1: screw-down - stainless steel 316L
Crown 2: screw-down - stainless steel 316L
Case back: screw-down - stainless steel 316L
Strap: genuine leather handmade in Italy – 22 mm
Strap length: about 260 mm including case
Clasp: deployant - stainless steel 316L – 20 mm
Water resistance: 30ATM - 300 meters
Gender: men
Weight: about 155 g
CONDITIONS
New, never worn – international two-year warranty included
CONTENT
Full set (The watch box may differ from the photos depending on stock availability 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 lighting reflections, shadows, or direct light during shooting.
IMPORTANT NOTE FIRST USE
For all watches with steel bracelets and leather, rubber, nato straps, etc., it is possible to remove links, pierce/shorten with DIY tools, but only with the necessary tools. If you are not able to do it yourself, kindly contact a professional.
All automatic watches must be wound at first use; wrist motion alone is not sufficient to maintain the required power reserve.
RULE FOR ALL WATCHES WITH DATE
To avoid possible damage to the movement, please do not set the date using 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 settings, gently unscrew the crown counterclockwise. Do not forget to securely close the crown after adjusting the desired settings.)
LOGISTICS/WAREHOUSE
All orders are shipped from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional tax to be paid within the European Union
EXTRA-EUROPE SHIPMENT - WORLD
All import costs to your country outside the European Union (duties and customs) are the buyer’s responsibility; we are not responsible 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, 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 piece undergoes rigorous checks, including functional, shock resistance, 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 "CHRONOMATIC - CALCULATOR - LTD. EDITION - MECCANICA SVIZZERA"
Stainless steel 316L case – sapphire crystal – automatic chronograph with Swiss-made movement – genuine leather strap handmade in Italy
Function: calculator - chronograph - hours - minutes - seconds – date
Case: 47x14 mm stainless steel 316L – double crown
Dial: matte - date at 4 o'clock - luminescent applied indices and luminescent hands - three-counter chronograph with calculator function operable via double crown.
Bezel: stainless steel 316L
Movement: automatic chronograph Swiss Made Landeron caliber 73
Crystal: sapphire
Crown 1: screw-down - stainless steel 316L
Crown 2: screw-down - stainless steel 316L
Case back: screw-down - stainless steel 316L
Strap: genuine leather handmade in Italy – 22 mm
Strap length: about 260 mm including case
Clasp: deployant - stainless steel 316L – 20 mm
Water resistance: 30ATM - 300 meters
Gender: men
Weight: about 155 g
CONDITIONS
New, never worn – international two-year warranty included
CONTENT
Full set (The watch box may differ from the photos depending on stock availability 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 lighting reflections, shadows, or direct light during shooting.
IMPORTANT NOTE FIRST USE
For all watches with steel bracelets and leather, rubber, nato straps, etc., it is possible to remove links, pierce/shorten with DIY tools, but only with the necessary tools. If you are not able to do it yourself, kindly contact a professional.
All automatic watches must be wound at first use; wrist motion alone is not sufficient to maintain the required power reserve.
RULE FOR ALL WATCHES WITH DATE
To avoid possible damage to the movement, please do not set the date using 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 settings, gently unscrew the crown counterclockwise. Do not forget to securely close the crown after adjusting the desired settings.)
LOGISTICS/WAREHOUSE
All orders are shipped from our warehouse located in ITALY
NATIONAL AND EUROPEAN SHIPMENT
No additional tax to be paid within the European Union
EXTRA-EUROPE SHIPMENT - WORLD
All import costs to your country outside the European Union (duties and customs) are the buyer’s responsibility; we are not responsible 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, please contact us before leaving negative or neutral feedback; our goal is to leave all our buyers satisfied with their purchase. Happy bidding
