Seiko · Prospex Divers
Strap for Prospex Diver Trans Ocean Stainless Steel / Black / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
20mm
Lug width20 mm
Case diameter45 mm
ReferenceSBDC039
FamilyProspex Divers
MovementSeiko caliber 6R15
Hours, Minutes, Seconds | Date
CaseStainless Steel
Straps for the Prospex Divers SBDC039
Selected for the 20 mm lug width · workshop selection
Recycled Nylon Military Strap — Grey with Red Stitching€52
Light Blue Recycled Military Strap with Red Stitching€52
Eco Recycled Nylon Military NATO Strap — Green with Green Stitching€52
Recycled Nylon Military NATO Strap — Red and Black Edges€52
Eco-Friendly Recycled Nylon Military NATO Strap — Green with Orange Edges€52
The Prospex Divers SBDC039, seen from the bench
The Seiko Prospex Diver SBDC039 represents six decades of Seiko research in professional underwater watchmaking. The 45mm stainless steel case, unidirectional bezel with defined tactile clicks, and certified 300-meter water resistance position it as a true tool watch. The Seiko Caliber 6R15 manual-wind movement offers 50 hours of power reserve at 21,600 vibrations per second. The 20mm lug width accommodates a practical wrist circumference while maintaining visual stability.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only