Ball Trainmaster Standard Time 18k Chronometer NM3888D

by Ball



◆ Automatic caliber BALL RR1105-C
◆ Chronometer certified COSC


◆ 14 micro gas tubes on hour and minute hands and dial for night reading capability
◆ Hours, minutes, subsidiary seconds and date

Shock resistance

◆ 5,000Gs

Water resistance

◆ 30m/100ft


◆ 18k/750 rose gold
◆ Ø 39.5mm, height 10.5mm
◆ Anti-reflective convex sapphire crystal
◆ Convex sapphire crystal case back
◆ 18k/750 rose gold crown


◆ Crocodile leather strap with standard buckle


◆ White enamel

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Accredited Gem Lab ®

We have the equipment required to perform gemological testing and appraisals set forth by the American Gem Society.

Conflict Free

We only purchase diamonds through the most respected suppliers who, like us, proudly adhere to and enforce the standards established by the Kimberley Process.

Recycled Materials

Our fine gold and silver has been certified as being from 100% recycled sources by SCS Global - a third-party certification, verification and validation service.