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Chronometer / COSC-Certified Watches

Browse COSC-certified chronometer watches — independently tested for precision timekeeping. Explore chronometer-grade pieces from Rolex, Omega, Breitling and more, all authenticated by MONTREDO.

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1393 products

Save €1,380BALL Watch Engineer Hydrocarbon Automatic Blue 42mm
BALL Watch Engineer Hydrocarbon Automatic Blue 42mm

DC3226A-S6C-BE

42mm NEW
Sale price€3,710 Regular price€5,090
Save €930BALL Watch Engineer Hydrocarbon Automatic Black 40mm
BALL Watch Engineer Hydrocarbon Automatic Black 40mm

DM2118B-SCJ-BK

40mm NEW
Sale price€2,580 Regular price€3,510
Save €930BALL Watch Engineer Hydrocarbon Automatic Black 43mm
BALL Watch Engineer Hydrocarbon Automatic Black 43mm

DM2218B-SCJ-BK

43mm NEW
Sale price€2,580 Regular price€3,510
Save €930BALL Watch Engineer Hydrocarbon Automatic Blue 43mm
BALL Watch Engineer Hydrocarbon Automatic Blue 43mm

DM2218B-S1CJ-BE

43mm NEW
Sale price€2,580 Regular price€3,510
Save €930BALL Watch Engineer Hydrocarbon Automatic Green 43mm
BALL Watch Engineer Hydrocarbon Automatic Green 43mm

DM2218B-S2CJ-GR

43mm NEW
Sale price€2,580 Regular price€3,510
Save €860BALL Watch Engineer Hydrocarbon Automatic Black 42mm
BALL Watch Engineer Hydrocarbon Automatic Black 42mm

DM2276A-S2CJ-BK

42mm NEW
Sale price€2,400 Regular price€3,260
Save €860BALL Watch Engineer Hydrocarbon Automatic Blue 42mm
BALL Watch Engineer Hydrocarbon Automatic Blue 42mm

DM2276A-S2CJ-BE

42mm NEW
Sale price€2,400 Regular price€3,260
Save €880BALL Watch Engineer Hydrocarbon Automatic Black 42mm
BALL Watch Engineer Hydrocarbon Automatic Black 42mm

DM2236A-SCJ-BK

42mm NEW
Sale price€2,450 Regular price€3,330
Save €850BALL Watch Engineer Hydrocarbon Automatic Black 42mm
BALL Watch Engineer Hydrocarbon Automatic Black 42mm

DM2236A-PCJ-BK

42mm NEW
Sale price€2,360 Regular price€3,210
Save €810BALL Watch Engineer Master II Automatic Black 42mm
BALL Watch Engineer Master II Automatic Black 42mm

DM3308A-SC-BK

42mm NEW
Sale price€2,270 Regular price€3,080
Save €810BALL Watch Engineer Master II Automatic Blue 42mm
BALL Watch Engineer Master II Automatic Blue 42mm

DM3308A-S1C-BE

42mm NEW
Sale price€2,270 Regular price€3,080
Save €630BALL Watch Engineer II Automatic Black 43mm
BALL Watch Engineer II Automatic Black 43mm

NM2028C-L4CJ-BK

43mm NEW
Sale price€1,760 Regular price€2,390
Save €650BALL Watch Engineer III Automatic Black 40mm
BALL Watch Engineer III Automatic Black 40mm

NM9026C-S6CJ-BK

40mm NEW
Sale price€1,800 Regular price€2,450
Save €650BALL Watch Engineer III Automatic Grey 40mm
BALL Watch Engineer III Automatic Grey 40mm

NM9026C-S6CJ-GY

40mm NEW
Sale price€1,800 Regular price€2,450
Save €650BALL Watch Engineer III Automatic Green 40mm
BALL Watch Engineer III Automatic Green 40mm

NM9026C-S6CJ-GR

40mm NEW
Sale price€1,800 Regular price€2,450
Save €650BALL Watch Engineer III Automatic Blue 40mm
BALL Watch Engineer III Automatic Blue 40mm

NM9026C-S6CJ-IBE

40mm NEW
Sale price€1,800 Regular price€2,450
Save €610BALL Watch Engineer III Automatic Black 40mm
BALL Watch Engineer III Automatic Black 40mm

NM9026C-S5CJ-BK

40mm NEW
Sale price€1,720 Regular price€2,330
Save €610BALL Watch Engineer III Automatic Blue 40mm
BALL Watch Engineer III Automatic Blue 40mm

NM9026C-S5CJ-BE

40mm NEW
Sale price€1,720 Regular price€2,330
Save €610BALL Watch Engineer III Automatic Silver 40mm
BALL Watch Engineer III Automatic Silver 40mm

NM9026C-S5CJ-SL

40mm NEW
Sale price€1,720 Regular price€2,330
Save €610BALL Watch Engineer III Automatic Black 40mm
BALL Watch Engineer III Automatic Black 40mm

NM9026C-S15CJ-BK

40mm NEW
Sale price€1,720 Regular price€2,330
Save €610BALL Watch Engineer III Automatic Blue 40mm
BALL Watch Engineer III Automatic Blue 40mm

NM9026C-S15CJ-BE

40mm NEW
Sale price€1,720 Regular price€2,330
Save €790BALL Watch Engineer III Automatic Black 40mm
BALL Watch Engineer III Automatic Black 40mm

NM2032C-S1C-BK

40mm NEW
Sale price€2,220 Regular price€3,010
Save €790BALL Watch Engineer M Automatic Black 43mm
BALL Watch Engineer M Automatic Black 43mm

NM2128C-S1C-BK

43mm NEW
Sale price€2,220 Regular price€3,010
Save €790BALL Watch Engineer III Automatic Blue 43mm
BALL Watch Engineer III Automatic Blue 43mm

NM2128C-S1C-BE

43mm NEW
Sale price€2,220 Regular price€3,010
Save €880BALL Watch Trainmaster Automatic Black 40mm
BALL Watch Trainmaster Automatic Black 40mm

NM3280D-S1CJ-BK

40mm NEW
Sale price€2,450 Regular price€3,330
Save €880BALL Watch Trainmaster Automatic Silver 40mm
BALL Watch Trainmaster Automatic Silver 40mm

NM3280D-S1CJ-SL

40mm NEW
Sale price€2,450 Regular price€3,330
Save €730BALL Watch Trainmaster Automatic White 40mm
BALL Watch Trainmaster Automatic White 40mm

NM3888D-S1CJ-WH

40mm NEW
Sale price€2,030 Regular price€2,760
Save €730BALL Watch Trainmaster Automatic White 40mm
BALL Watch Trainmaster Automatic White 40mm

NM3888D-LL1CJ-WH

40mm NEW
Sale price€2,030 Regular price€2,760
Save €1,250Breitling Chronomat Quartz Pink 32mm
Breitling Chronomat Quartz Pink 32mm

A77310101K1A1

32mm NEW
Sale price€4,050 Regular price€5,300
Save €1,060Longines Record Automatic Mother of Pearl 30mm
Longines Record Mother of Pearl

L2.321.0.87.6

30mm NEW
Sale price€4,490 Regular price€5,550
Save €570Longines Record Automatic Black 40mm
Longines Record Black

L2.821.4.57.2

40mm NEW
Sale price€2,330 Regular price€2,900
Save €2,810Breitling Chronomat Automatic Blue 42mm
Breitling Chronomat Automatic Blue 42mm

PB0134101C1S1

42mm NEW
Sale price€8,690 Regular price€11,500
Save €9,000Breitling Chronomat Automatic Brown 44mm
Breitling Chronomat Automatic Brown 44mm

RB0136E31Q1S1

44mm NEW
Sale price€25,800 Regular price€34,800
Sold outSave €650BALL Watch Engineer III Automatic Red 40mm
BALL Watch Engineer III Automatic Red 40mm

NM9026C-S6CJ-RD

40mm NEW
Sale price€1,800 Regular price€2,450
Sold outSave €790BALL Watch Engineer III Automatic Blue 40mm
BALL Watch Engineer III Automatic Blue 40mm

NM2032C-S1C-BE

40mm NEW
Sale price€2,220 Regular price€3,010
Sold outSave €830Baume & Mercier Clifton Automatic Red 40mm
Baume & Mercier Clifton Automatic Red 40mm

M0A10699

40mm NEW
Sale price€2,720 Regular price€3,550
Sold outSave €1,140Baume & Mercier Clifton Automatic White 40mm
Baume & Mercier Clifton Automatic White 40mm

M0A10519

40mm NEW
Sale price€3,260 Regular price€4,400
Sold outSave €570Longines Record Automatic Black 40mm
Longines Record Black

L2.821.4.57.6

40mm NEW
Sale price€2,330 Regular price€2,900
Sold outPlaceholder image with 'Image Coming Soon' text on a white background
Ulysse Nardin Ulysse Nardin Marine Automatic Blue 42mm

1183-310LE-3AE-175/1A

42mm NEW
Sale price€10,400
Sold outSave €1,560Breitling Navitimer Automatic Grey 41mm
Breitling Navitimer Automatic Grey 41mm

U17326121M1P1

41mm NEW
Sale price€5,240 Regular price€6,800
Sold outSave €1,170Breitling Navitimer Automatic Blue 41mm
Breitling Navitimer Automatic Blue 41mm

A17326161C1P2

41mm NEW
Sale price€3,930 Regular price€5,100
Sold outSave €1,170Breitling Navitimer Automatic Blue 41mm
Breitling Navitimer Automatic Blue 41mm

A17326161C1P4

41mm NEW
Sale price€3,930 Regular price€5,100
Sold outSave €800Breitling Avenger Automatic White 43mm
Breitling Avenger Automatic White 43mm

A32397101A1X1

43mm NEW
Sale price€3,400 Regular price€4,200
Sold outSave €1,150Breitling Navitimer Automatic Black 41mm
Breitling Navitimer Automatic Black 41mm

A17326241B1P1

41mm NEW
Sale price€3,700 Regular price€4,850
Sold outSave €1,880Breitling Premier Automatic Black 42mm
Breitling Premier Automatic Black 42mm

AB0118371B1X1

42mm NEW
Sale price€6,570 Regular price€8,450
Sold outSave €990Breitling Navitimer Automatic Blue 41mm
Breitling Navitimer Automatic Blue 41mm

A17326161C1P3

41mm NEW
Sale price€3,860 Regular price€4,850
Sold outSave €1,830Porsche Design 1919 Automatic Black 42mm
Porsche Design 1919 Automatic Black 42mm

6023.4.02.005.07.2

42mm NEW
Sale price€4,420 Regular price€6,250
Sold outSave €1,830Porsche Design Chronotimer Automatic Black 42mm
Porsche Design Chronotimer Automatic Black 42mm

6013.6.05.005.08.2

42mm NEW
Sale price€4,420 Regular price€6,250