Vintage Natural Rubber Watch Strap – Blancpain Fifty Fathoms APOLLO style – 19 mm
This is an authentic Swiss-made vintage rubber watch strap, the original reference L/319 for the Blancpain Fifty Fathoms. The strap retains its period-correct APOLLO style and remarkable flexibility, graded in Excellent condition. It offers a direct, 19mm replacement for a vintage Fifty Fathoms or any compatible watch.
This is an authentic vintage natural rubber watch strap, produced in Switzerland during the 1960s or 1970s. It is the original reference L/319, sharing the identical style, quality, and manufacturing origin as the Swiss APOLLO rubber straps. These straps were the first-choice factory option for vintage Blancpain Fifty Fathoms diver watches of that era, representing a key period in the model’s development as a professional tool watch.
The strap is crafted from a specific, highly flexible yet resistant rubber compound. This material retains its original elasticity, a characteristic that has endured for over five decades. The strap is offered in its original, unaltered state and is graded Excellent in our Condition Grading Scale below. It is supplied with its original stainless steel buckle, marked accordingly.
Specifications
The official manufacturer reference for this strap is L/319. The strap body is made from vintage natural rubber. The buckle is made from stainless steel and is marked STAINLESS STEEL. The strap features curved ends designed to fit closely against a watch case.
Width at the watch lugs (case attachment point) is approximately 19 mm. Width at the buckle end tapers to approximately 16 mm. The short piece (with buckle holes) measures approximately 70 mm in length. The long piece measures approximately 115 mm in length. These dimensions provide a classic vintage fit.
Notes
The article is sold “AS IS”. Please read our Warranty Policy before purchasing.
Any parts not explicitly mentioned in this description or not visible in the accompanying photographs are not included.
Colors may appear slightly different across various screens and devices so we cannot guarantee an exact screen–to–reality color match.
This L/319 strap provides a direct, period-correct replacement or upgrade for a vintage Fifty Fathoms or any compatible 19mm watch, sourced directly from Switzerland.
Frequently Asked Questions
Which watches is this strap compatible with?
This strap will fit any watch with 19 mm lug width. It is the correct original style for vintage Blancpain Fifty Fathoms models from the 1960s and 1970s that were originally equipped with an APOLLO-style rubber strap.
What is the condition of this vintage strap?
The strap is in Excellent condition as per our grading scale. It is a vintage piece from the 1960s/1970s that retains its original flexibility and shows no signs of dry rot or cracking, which is uncommon for rubber of this age.
Is the buckle included with the strap?
Yes, the original stainless steel buckle is included and attached. It is marked STAINLESS STEEL.
What are the exact dimensions of the strap?
The strap is approximately 19 mm wide at the lugs, tapering to 16 mm at the buckle. The short piece is about 70 mm long, and the long piece is about 115 mm long. These are typical dimensions for a vintage men’s watch strap.
How do I know this is an authentic vintage part?
The strap bears the correct period reference marking L/319, matches the known APOLLO style, and exhibits material properties consistent with Swiss rubber production from that era. All our parts are sourced directly from Switzerland.
Component · Watch straps
Across the five-grade scale, here is what each grade means specifically for watch straps. The cell highlighted in brass marks where this specimen sits.
MintA++Unworn, original buckle, leather supple, stitching perfect, no stains.
