Seiko · Prospex Divers

Strap for Seiko Prospex Divers SSC489P1

The Prospex Diver SSC489P1 Stainless Steel / Blue takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width20 mm
Case diameter45 mm
ReferenceSSC489P1
FamilyProspex Divers
MovementSeiko caliber V195 Hours, Minutes, Seconds, World time | Solar charging
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Standard spring bar · length 20 mm · Ø 1.8 mm double flange · industry standard, no brand part number

Prospex Diver SSC489P1 Stainless Steel / Blue — watch

What I'm asked about the Seiko Prospex Divers SSC489P1

What strap size does the Seiko Prospex Divers SSC489P1 take?

The Seiko Prospex Divers SSC489P1 needs 20 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Seiko Prospex Divers SSC489P1 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Seiko Prospex Divers SSC489P1?

Yes, in 20 mm leather, as long as you don't wear it in the water: leather doesn't like the sea or the pool. For days in the water, rubber. On a 45 mm diver I go for a full-thickness strap, not a thin one.

Which strap do you recommend for the Seiko Prospex Divers SSC489P1?

Rubber if you wear it in the water; otherwise a 20 mm calf strap, full thickness. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

The atelier's website: casatimilano.com