Bremont
Supermarine S300/BK/BR— lug 20mm
Bremont Supermarine S300/BK/BR: 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
Bremont S300/BK/BRThe essential strap measurement.
Browse 20mm straps →S300/BK/BR
Bremont caliber BE-36AE Hours, Minutes, Seconds | Date, Day | Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Supermarine
FAQ
What is the exact lug width of the Bremont Supermarine S300/BK/BR?
The Bremont Supermarine S300/BK/BR features a 20-millimetre lug width. Measurement should be taken between the upper attachment pins of the case, excluding the pin diameter itself. This specific dimension is not a mass-market standard but a precise constructive choice by Bremont, creating balanced proportions on a 40mm case.
Which strap material is most suitable for the Supermarine S300/BK/BR?
The ideal strap depends on intended use. Alligator or shell cordovan represent formal choices of excellence, with natural patina developing over time. For robust daily wear, shell cordovan offers superior density and extreme longevity. For light diving situations or saltwater environments, vulcanised rubber or polyamide NATO ensures stability on wet skin without salt-induced degradation.
How do you change the strap on the Bremont Supermarine S300/BK/BR?
Strap replacement requires a precision spring bar removal tool. Position the watch on a stable surface, access the lower attachment pin with the tool, apply controlled pressure to release the internal spring, and extract the pin. Repeat for the upper attachment. Insert the new strap by aligning the holes and pressing the pins until they click into place. Verify stability before wearing.
Which aftermarket strap is compatible with the Bremont Supermarine S300/BK/BR?
Any strap with 20-millimetre lugs is compatible with the S300/BK/BR, provided the pins are of identical diameter (typically 1.8mm in the luxury watch sector). Milano Straps offers a dedicated collection of 20mm straps in alligator, calf, shell cordovan, NATO and rubber, all verified for constructive compatibility and dispatched ready for installation.
What is the expected lifespan of a leather strap on the Bremont Supermarine S300/BK/BR?
Leather strap longevity depends on material and usage. Vegetable-tanned alligator typically lasts 3-5 years with daily wear; shell cordovan can exceed 7-10 years due to superior density. Standard calf sits between 2-4 years of intense use. Exposure to perspiration, saltwater and sunlight accelerates degradation. Maintaining a reserve strap and seasonal rotation significantly extends the useful life of each strap.