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Gronefeld Deltaworks on olive rubber strap





The Horological Brothers, Bart and Tim Grönefeld, proudly embrace their Dutch heritage. Inspired by the Netherlands’ ‘Delta Works,’ they created their first sports utility watch, the 1969 DeltaWorks, also honoring Bart’s birth year. This model is designed to withstand water ingress and shocks while upholding the highest standards of horology and traditional craftsmanship synonymous with the Grönefeld name. Since its 2022 launch, it has been highly sought after. Although not a limited edition, only 20 watches per year are produced over a five-year period due to production capacity. It’s available now for a limited time.

Includes shipping. To purchase, contact me here.

Watch Features
  • Country of Manufacture: Netherlands 
  • Bracelet Strap: Green Rubber 
  • Case: Stainless Steel 
  • Case Back: Exhibition
  • Case Width: 44.5mm
  • Clasp Type: Folding 
  • Crystal: Domed Sapphire 
  • Dial Color: Khaki with blue accents 
  • Functions: Hours, Minutes and Seconds
  • Gender: Men’s
  • Hands:Flame-blued or polished steel extended Lancette hands with blue light emitting Super-LumiNova® Grade X1. Small poised seconds hand
  • Dial Markers: Arabic numeral 12 & Indexes
  • Brand: Gronefeld 
  • Warranty: Yes
  • Movement: G-06 calibre self-winding/automatic
  • Water Resistance: 100 meters
  • ​Price: ​$66,500

Due to the unpredictable and volatile market on certain Rolex, Patek Philippe and Audemars Piguet watches, prices are subject to change.