Seiko
Prospex Divers SSF001J1— lug 24mm
Seiko Prospex Divers SSF001J1: 24mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 24mm lug width to preserve the original sartorial balance."
Technical Specifications
Seiko SSF001J1The essential strap measurement.
Browse 24mm straps →SSF001J1
Seiko caliber 8X53 Additional 12 Hour Hand (adjustable), Day / Night Indication, Hours, Minutes, Seconds, World Time | Date, Day, Perpetual Calendar | GPS
The Heritage
Compatible Straps
Selected for the 24mm lug width of the Prospex Divers
FAQ
What is the lug width of the Seiko Prospex Divers SSF001J1?
The Seiko Prospex Divers SSF001J1 features a lug width of 24mm. This is a non-standard size requiring specifically compatible straps. Do not attempt to use universal straps of different widths, as they will not seat correctly in the titanium case lugs.
What strap is recommended for the Prospex Divers SSF001J1?
We recommend an alligator strap with vegetable tanning, which creates elegant contrast with the brushed titanium case, or fine-grained calf leather for a softer texture. For intensive aquatic environments, an FKM rubber or dense nylon NATO strap ensures superior water resistance and salt durability.
How do you change the strap on the Seiko Prospex Divers SSF001J1?
To change the strap, use a spring bar tool (a specialized tool with two flat ends) to release the elastic pins connecting the strap to the case. Insert the tool into the lateral slots of the pins, push inward, and remove the old strap. Insert the new strap by aligning the holes with the pins, then press until you hear a locking click.
What aftermarket straps are compatible with the SSF001J1?
Any strap with a 24mm lug width is compatible, regardless of brand. Milano Straps offers a complete collection of 24mm straps: alligator, calf, shell cordovan, NATO, and rubber. All our straps are crafted using artisanal techniques and support the standard titanium lugs of the Prospex Divers.
How long does a leather strap last on the Prospex Divers SSF001J1?
Durability depends on material, usage environment, and maintenance. An alligator strap with vegetable tanning lasts 3-5 years in daily wear, developing a sought-after patina. Fine-grained calf resists 2-3 years. If frequently exposed to salt water, service life diminishes. Rubber straps have no biological limit but lose elasticity after 5-7 years.