The Ball Engineer Master II Endurance 1917 combines Swiss watchmaking precision with robust engineering heritage. This 40mm automatic timepiece features a striking blue dial that captures light with sophisticated depth, housed in a durable stainless steel case built to withstand demanding conditions. The mechanical movement delivers reliable timekeeping, while the classic design pays homage to Ball's storied legacy in precision instruments. Water-resistant construction and a refined finish make this watch equally suited for professional environments or everyday wear. A distinguished choice for collectors who appreciate functional elegance and horological craftsmanship.

Movement: Automatic

Caliber: RR1103-C

Chronometer Certification: COSC certified

Temperature Resistance: Special movement oil rated to −45°C / −49°F

Case Diameter: 40

Case Height (Thickness): 13.6

Case Length (Lug to Lug): 46.6

Case Material: Stainless steel

Case Protection: Mu-metal shield, Amortiser® patented anti-shock system

Crystal: Anti-reflective sapphire crystal

Crown: Screwed-in crown

Water Resistance: 100 m / 330 ft

Anti-Magnetism: 1,000 Gauss (80,000 A/m)

Shock Resistance: 5,000 Gs

Dial Color: Blue

Illumination: 17 micro gas tubes on hour, minute and second hands and dial for night readability

Bracelet Material: Stainless Steel

Buckle Type: Folding buckle

Lug Width: 20

Weight: Approx. 180 g

Edition: Limited Edition, 1,000 pieces

Functions:

• Hours
• Minutes
• Sweep seconds
• Magnified date