Grand Seiko · Quartz

Strap for Quartz Date Stainless Steel / Silver / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter37 mm
ReferenceSBGX205
FamilyQuartz
MovementGrand Seiko caliber 9F62 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Quartz SBGX205

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Quartz SBGX205, seen from the bench

The Grand Seiko SBGX205 is powered by the 9F62 quartz caliber with hour, minute, second and date indication. The 9F62 movement represents Grand Seiko's high-precision quartz watchmaking, with an annual accuracy of ±10 seconds. The reference is part of the brand's Quartz collection dedicated to precision electronic movements.

Frequently asked questions

What is the lug width of the Grand Seiko Quartz SBGX205?

The Grand Seiko SBGX205 features a lug width of 20 millimetres, measured as the internal distance between the two spring bar pins on the case. This specification allows compatibility with any standard 20mm watch strap, whether aftermarket or bespoke.

What is the best strap for the Grand Seiko SBGX205?

The optimal strap depends on intended use. For formal contexts, American alligator with vegetable tanning in brown or black tones is recommended; for daily versatility, high-grade calf offers softness and evolving patina; for durability and practicality, shell cordovan or vulcanised rubber ensures long-term reliability.

How do I change the strap on my Grand Seiko SBGX205?

Changing the strap requires a spring bar tool. Position the tool horizontally beneath the lateral pin, apply gentle pressure to release the internal spring, and extract the old strap. Insert the new strap by reversing the process, ensuring both pins are properly seated in the grooves.

Can I use an aftermarket strap on my SBGX205?

Yes, any strap with a 20mm lug width is compatible with the SBGX205. High-quality artisanal aftermarket straps offer aesthetic personalisation compared to the original bracelet whilst maintaining attachment reliability through standard spring bars.

What is the lifespan of a leather strap on the Grand Seiko SBGX205?

A quality leather strap (alligator, calf, shell cordovan) with vegetable tanning typically lasts 3–5 years under daily wear. Durability depends on frequency of use, water exposure, and maintenance practices such as drying after moisture contact and annual conditioning with appropriate oils.

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.

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