Description
Damasko DC89 GMT Black Green
The Damasko DC89 GMT Black Green introduces an expressive combination of colour and advanced German engineering to the manufacturer’s innovative GMT chronograph collection. Featuring a green sunburst dial surrounded by a black DAMEST® PVD-coated stainless steel case and bezel, this sophisticated timepiece brings a distinctive contemporary character to Damasko’s traditional instrument-watch design. Beneath its striking exterior is an unusual mechanical complication capable of displaying up to three time zones, combining a sliding GMT indication with a jumping central chronograph minute counter. The result is a watch that places technical innovation and precision manufacturing at the centre of its design.
A defining feature of the DC89 GMT Black Green is its fully black-coated construction. Damasko’s patented DAMEST® treatment is applied to the ice-hardened stainless steel components, including the case, case back, crown, pushers and bezel. This specialised multi-layer PVD coating is engineered to combine exceptional surface hardness, abrasion resistance and flexibility, working in conjunction with the hardened steel beneath it. An ion implantation bonding layer helps secure the coating to its underlying material, while the ice-hardened construction provides a robust foundation designed to withstand demanding everyday conditions. The result is a cohesive black finish with genuine protective benefits.
Inside the DC89 GMT Black Green is the Damasko C51-7 Si automatic chronograph movement, incorporating the latest generation of the manufacturer’s SIC-Spring silicon assembly. Featuring both a silicon balance spring and silicon escape wheel, this advanced mechanical system is engineered for precise operation, reduced susceptibility to magnetic interference and long-term reliability. The movement receives top-grade adjustment and features rhodium-plated plates decorated with perlage and Geneva stripes. A 50-hour power reserve completes a sophisticated calibre that reflects Damasko’s extensive expertise in specialised movement development.
The DC89 introduces an unconventional combination of chronograph and GMT functionality. Its sliding second time zone, positioned at 3 o’clock, works alongside a jumping central chronograph minute counter, creating an arrangement described by Damasko as a world first. The GMT indication can be adjusted continuously and sequentially, allowing the watch to display up to three time zones, including regions with half-hour differences. Central hour and minute hands provide the primary time display, while centrally indicated chronograph seconds and minutes offer clear elapsed-time measurement. A date display at 6 o’clock completes the functional arrangement.
The green sunburst dial creates an engaging visual contrast against the black case, introducing tonal depth while preserving the purposeful appearance expected of a Damasko chronograph. White sword-shaped hands with silver edging provide strong definition, complemented by orange accents on the chronograph minute counter and GMT hand. Luminova X1 C1 is applied to portions of the hour and minute hands, while the GMT indication features Super-LumiNova for additional visibility. A double-domed sapphire crystal with an internal anti-reflective coating protects the dial, and a dedicated magnetic shielding cage provides further protection for the mechanical movement.
Completing the DC89 GMT Black Green is a bidirectional rotating bezel with a 60-minute countdown scale, hardened and finished with the same protective black DAMEST® coating. Compatible interchangeable bezel inserts provide additional versatility, while Damasko’s specialised screw-down crown system and pressure-resistant case construction support water resistance of 100 metres. With a case diameter of 42 mm, an overall height of 14.4 mm and a lug-to-lug measurement of 50.14 mm, the DC89 combines substantial mechanical capability with a bold, functional design. Its distinctive green-and-black appearance, advanced silicon movement and sophisticated GMT complication make it a particularly interesting expression of independent German watchmaking.
Technical Specifications
Movement
- Damasko C51-7 Si mechanical chronograph movement
- Automatic winding
- Top-grade adjustment
- Latest-generation Damasko SIC-Spring silicon assembly
- Silicon balance spring and silicon escape wheel
- Rhodium-plated movement plates
- Perlage and Geneva stripe decoration
- Power reserve: 50 hours
Functions
- Central hour and minute indication
- Chronograph with central stop seconds and jumping central stop minutes
- Sliding GMT display at 3 o’clock
- Continuously and sequentially adjustable second time zone
- Ability to display up to three time zones
- Supports half-hour time zone differences
- Date display at 6 o’clock
Case
- Ice-hardened stainless steel construction
- Black DAMEST® multi-layer PVD coating
- All stainless steel components protected by DAMEST® coating
- Ice-hardened case, case back, crown and pushers
- Screwed case back
- Screw-down crown with Damasko crown protection system
- Water resistance: 10 bar / 100 metres
- Pressure and vacuum resistant
- Functional reliability under vacuum and acceleration tested and certified to military standards
DAMEST® Coating
- Patented black multi-layer protective coating
- Physical Vapour Deposition (PVD) technology
- Applied over ice-hardened stainless steel
- Approximately 7 µm coating thickness
- Ion implantation bonding layer
- Underlying ice-hardened steel hardness of approximately 710 HV
- Engineered for high scratch and abrasion resistance
- Designed to combine surface hardness with flexibility and impact resilience
Crystal
- Double-domed sapphire crystal
- Special anti-reflective coating on the inner surface
Bezel
- Bidirectional rotating bezel
- 60-minute countdown scale
- Hardened bezel and bezel insert
- Black DAMEST® PVD coating
- Compatible interchangeable bezel inserts
Dial
- Green dial with subtle sunburst finish
- Contrasting white hands and indications
- Chronograph minute counter hand with orange tip
- GMT hand with orange outline and Super-LumiNova
- Date display positioned at 6 o’clock
Hands
- Sword-shaped hour and minute hands
- White hour and minute hands with silver edging
- Luminova X1 C1 on portions of the hour and minute hands
- Silver seconds hand
- Orange highlights on the chronograph minute counter and GMT hand
Magnetic Protection
- Integrated magnetic field protection cage
- Dedicated magnetic shielding surrounding the movement
Dimensions and Weight
- Case diameter: 42.00 mm
- Rotating bezel diameter: 43.80 mm
- Case height excluding crystal: 13.80 mm
- Overall height including domed crystal: 14.40 mm
- Lug-to-lug length: 50.14 mm
- Lug width: 22.00 mm
- Weight excluding strap: 103.00 g













