Curved-End Rubber Watch Strap 21mm – Compatible with Patek Philippe Aquanaut 5164/5167

Refresh your compatible Patek Philippe Aquanaut 5164 or 5167 watch with this 21mm curved-end rubber replacement strap. Designed with a textured surface and model-specific case connection, it offers a clean sport-watch appearance and a flexible feel for everyday wear.

The strap features a cut-to-fit design with marked trimming grooves, allowing the length to be shortened for your wrist before installing a compatible folding clasp. Available in multiple colors, with optional clasp configurations depending on the selected variant.

Key Features

• Compatible with selected Patek Philippe Aquanaut 5164 and 5167 watches
• 21mm model-specific curved-end connection
• Soft and flexible rubber/silicone construction
• Textured rectangular-grid surface
• Cut-to-fit length adjustment using molded trimming grooves
• Integrated curved-end profile for matching case geometry
• Multiple color options for sport and everyday wear
• Optional folding clasp configurations depending on selected variant
• Third-party replacement strap

Compatibility

This strap is designed for selected Patek Philippe Aquanaut 5164 and 5167 watches requiring a compatible 21mm curved-end connection.

Not Compatible With:

• Patek Philippe Aquanaut 5168G – 22mm connection
• Patek Philippe Aquanaut 5968 – 22mm connection
• Other Aquanaut references unless specifically verified

Important: This is a model-specific curved-end strap, not a universal 21mm replacement band. Compatibility depends on the exact watch reference, case geometry, attachment configuration, and clasp dimensions. A matching width alone does not guarantee fit.

Please confirm the full reference of your watch and compare the attachment interface with your existing strap before ordering.

This is a third-party replacement watch strap. It is not manufactured, sponsored, endorsed, authorized, or supplied by Patek Philippe. Brand and model names are used solely to identify compatibility. Watch not included.

Specifications

• Product Type: Replacement Watch Strap
• Material: Rubber / Silicone
• Design: Textured Sport Strap
• Watch Connection Width: 21mm
• End Type: Model-Specific Curved End
• Compatible Models: Selected Aquanaut 5164 / 5167
• Length Adjustment: Cut-to-Fit / Trim-to-Size
• Trimming Method: Molded Cutting Grooves
• Uncut Strap Length: Not specified by supplier
• Clasp Options: As selected from available product variants
• Colors: Black / Blue / Brown / Gray / Green / Orange / Red / White
• Net Weight: Approx. 22g (supplier-stated)
• Condition: New
• Quantity: 1 Two-Piece Strap Set

Cut-to-Fit Length Adjustment

This strap features a trim-to-size design with molded cutting grooves near the clasp end. The length can be shortened gradually to achieve a suitable wrist fit before the compatible clasp is attached.

• Adjustable length through trimming
• Pre-marked grooves help guide cutting
• Both strap sections can be adjusted according to the required fit
• No removable metal bracelet links are involved

Important: Measure your wrist and confirm the required strap length before trimming. Cut small amounts at a time and check the fit before removing additional material. Once trimmed, the strap cannot be restored to its original length.

The supplier has not provided a verified numerical measurement for the uncut length of this specific product. Please contact us before ordering if you require exact strap-length measurements.

Curved-End Fitment

The strap features a shaped connection intended to follow the case profile of compatible Aquanaut 5164 and 5167 watches. Correct installation requires matching attachment geometry and secure engagement with the watch case.

It should not be used as a replacement for Aquanaut 5168G or other models requiring a different connection size or profile.

Clasp Compatibility

Selected variants may include a folding clasp. If you choose a strap-only configuration, a compatible clasp must be available separately.

Before reusing an existing clasp, confirm the clasp-end width, attachment mechanism, and connection details. The 21mm watch-side measurement does not determine clasp compatibility.

Before Ordering

• Confirm your watch reference is within the supported Aquanaut 5164 or 5167 group
• Confirm the required 21mm curved-end connection
• Do not order for Aquanaut 5168G or 5968
• Compare the original strap attachment and case connection
• Verify the clasp configuration included with your selected variant
• Check wrist measurements before trimming
• Contact us if you need confirmation of exact strap length or fitment

What's Included

• 1 × Two-Piece Curved-End Rubber Watch Strap
• Folding Clasp only when included with the selected variant
• Watch not included

Care Instructions

• Rinse gently with fresh water after exposure to perspiration or salt water
• Dry with a soft cloth before storage
• Avoid harsh chemicals, solvents, and abrasive cleaners
• Check the strap and clasp attachment before wearing
• Avoid excessive trimming during initial size adjustment