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Ball Engineer Master II Diver Chronometer LimEd Automatic Watch
Color: Blue
· Ref: DM2280A-S1C-BER
$3,427
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Color: Blue
Authenticity
Authorized Ball dealer
Warranty
Official Ball warranty
Shipping
Free · DHL Express
Returns
30 days from delivery
Overview
Ball Engineer Master II Diver Chronometer brings an illuminated internal sapphire bezel and a blue dial to a 42 mm stainless steel case.
Sapphire forms the rotating elapsed-time scale beneath the crystal. The bezel turns in both directions inside the case, placing its elapsed-time markings within the dial’s layout. Gas-tube illumination extends from the hands and hour markers to that timing scale, so both readings stay illuminated without an outside light charge. There are 36 tritium tubes across the hands, dial, and bezel. This reference uses rainbow gas tubes across the blue dial, adding a range of colors to the nighttime display.
A magnified date accompanies the hours, minutes, and sweep seconds. The COSC-certified Ball RR1101-C automatic movement has a 42-hour power reserve. Amortiser protection absorbs lateral shocks, while a mu-metal shield redirects static and low-frequency magnetic fields around the movement. This nickel, iron, copper, and molybdenum alloy provides resistance to 80,000 A/m (1,000 gauss).
This edition is limited to 1,000 watches. The stainless steel case measures 42 mm across and 13.5 mm thick. It has an anti-reflective sapphire crystal and screw-down crown, with shock resistance rated at 5,000 Gs and water resistance at 30 atm. A 21 mm stainless steel bracelet closes with a folding clasp.
At a glance
- Limited to 1,000 watches
- Rainbow gas tubes
- 36 tritium gas tubes
- Ball RR1101-C · COSC chronometer · 42-hour power reserve
- Antimagnetic to 80,000 A/m — 1,000 Gauss · shock-resistant to 5,000 Gs
- 30 atm water resistance
Specs
Type
Automatic
Diameter
42 mm
Crystal
Anti-reflective sapphire
Rating
30 atm
Type
Foldover clasp
Country of manufacture
Switzerland
Movement
Type
Automatic
Calibre
Ball RR1101-C
Power reserve
42 Hours
Frequency
28,800 vph
Jewels
21 jewels
Case
Material
Stainless steel
Diameter
42 mm
Thickness
13.5 mm
Crystal
Anti-reflective sapphire
Crown
Screw-down crown
Antimagnetic
80,000 A/m
Impact resistance
5,000 Gs
Magnetic shield
Mu-metal
Shock system
Patented Amortiser® system
Product
Limited edition
1000 units
Dial
Color
Blue
Calendar
Date (magnified)
Lume
Hands, hour markers and bezel
Gas tubes
36 H3 Gas tubes
Water resistance
Rating
30 atm
Bracelet
Width
21 mm
Material
Stainless steel
Clasp
Type
Foldover clasp
General
Country of manufacture
Switzerland
Bezel
Material
Sapphire
Position
Internal
Rotation
Bidirectional
Questions & Answers
How is the internal sapphire bezel built into the display?
The elapsed-time scale rotates beneath the crystal, inside the case, and turns in both directions. Gas tubes illuminate its markings continuously, extending the same self-powered lighting system used on the hands and dial to the timing scale.
What does this gas-tube version look like after dark?
This reference has rainbow tubes across the blue dial. There are 36 tubes in total across the hands, dial, and internal bezel. Tritium inside each sealed glass tube activates a luminous coating continuously, without a battery or prior exposure to light. The glow gradually fades as the tritium decays, with a half-life of about 12.3 years.
How do Amortiser and the magnetic shield protect the Diver Chronometer?
Amortiser surrounds the movement with a protective ring that absorbs energy from lateral shocks. A mu-metal shield redirects static and low-frequency magnetic fields around it, helping keep them from disturbing its rate. The watch is rated to 80,000 A/m (1,000 gauss); stronger magnetic fields can exceed that protection.
What does COSC certification mean for this movement?
It passed independent chronometer testing over 15 days, in five positions and at three temperatures. The permitted average daily rate during the test is -4 to +6 seconds. This traditional test is performed before the movement is cased, so the watch’s rate in daily wear can vary.
What helps preserve the watch’s water resistance?
Water resistance depends on the condition of the seals and correct closure of the crown and case. Seals change with age, so the pressure rating does not mean water resistance remains unchanged throughout the watch’s life. Follow Ball’s care and service instructions.
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The warranty covers manufacturing defects. It doesn't cover normal wear and tear or accidental damage — and on watches, it doesn't cover straps, bracelets, or batteries.
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You have 30 days from delivery to return your order.
How returns work. Just let us know and we'll email you a prepaid DHL Express return label — you never have to arrange a shipment or pay anything up front. The return shipping cost is deducted from your refund. If the item arrived damaged or wasn't what you ordered, the return is on us.
Your refund options.
- Store credit (issued as a gift card) — processed almost immediately once your return reaches us
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