Doxa
SUB 300 822.70.201.20— lug 20mm
Doxa SUB 300 822.70.201.20: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Doxa 822.70.201.20The essential strap measurement.
Browse 20mm straps →822.70.201.20
ETA caliber 2824-2 Hours, Minutes, Seconds | Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the SUB 300
FAQ
What is the lug width of the Doxa SUB 300 822.70.201.20?
The lug width of the Doxa SUB 300 822.70.201.20 is precisely 20 millimetres. This measurement should be verified using a digital calliper, positioning the measuring points between the lug pins and excluding any case shoulders or protective elements. All straps specified for 20mm are fully compatible with this model.
Which strap is most suitable for the Doxa SUB 300 in titanium and carbon?
The choice depends on intended use. An alligator leather strap with vegetable tanning creates elegant contrast against the modern titanium-carbon case and develops natural patina over time. For frequent diving, a rubber strap with textile reinforcement offers practicality and superior saltwater resistance. A Cordura NATO strap provides safety redundancy: should the lug pin loosen, the strap remains secured to the wrist during underwater operations.
How do you change the strap on a Doxa SUB 300?
The Doxa SUB 300 uses spring bar pins for strap attachment. Acquire a spring bar removal tool. Position the watch with the lugs facing upward, insert the tool into the small groove on the pin and apply gentle downward pressure whilst withdrawing the old strap. Align the new strap holes with the pins and reinsert the pins until they click. Verify the strap is securely fastened before use.
Are aftermarket straps compatible with the Doxa SUB 300 822.70.201.20?
Yes, all artisanal straps specified for 20mm are compatible with this model. Ensure the pin diameter of the strap matches the original Doxa pins (typically 1.6mm stainless steel). Straps in vegetable-tanned leather, rubber and NATO certified for 20mm will guarantee perfect fit and reliability during diving operations.
How long do vegetable-tanned leather straps last on a diving watch?
A vegetable-tanned leather strap subjected to frequent saltwater immersion maintains structural integrity for 18–24 months with proper care. Durability depends on immersion frequency and subsequent drying procedures. For occasional use (sporadic immersions), leather may remain serviceable for 3–4 years. After each immersion, dry the strap thoroughly and apply light natural oil treatment every six months. For weekly diving, a rubber strap represents the most durable and practical option.