Grand Seiko · Spring Drive

Strap for Spring Drive Yellow Gold / 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 diameter40 mm
ReferenceSBGA362
FamilySpring Drive
MovementGrand Seiko caliber 9S68 Hours, Minutes, Seconds
CaseYellow Gold

Spring bar

Swiss Standard universal spring bars

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

Straps for the Spring Drive SBGA362

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Spring Drive SBGA362, seen from the bench

The Grand Seiko Spring Drive SBGA362 is equipped with the caliber 9S68, providing hour, minute, and second indications. The Spring Drive technology combines the precision of quartz with the power reserve of a traditional mainspring. The movement offers a power reserve and the characteristic smooth sweep of the seconds hand.

Frequently asked questions

What is the lug width of the Grand Seiko Spring Drive SBGA362?

The SBGA362 lug width measures 20mm. This standard width ensures compatibility with a vast range of aftermarket artisan straps, guaranteeing seamless integration without requiring any structural modifications to the case.

What is the best strap choice for the Grand Seiko Spring Drive SBGA362?

For a yellow gold model such as the SBGA362, we recommend an alligator strap in black or cognac brown, alternatively a shell cordovan strap in burgundy. These premium materials elevate the watch's intrinsic quality and aesthetic identity. Avoid synthetic materials or low-grade chrome tanning.

How do I change the strap on a Grand Seiko Spring Drive SBGA362?

Strap replacement involves removing the lug pins—the small metal cylinders securing the strap in place. Use a dedicated tool such as a spring bar removal tool or a precision screwdriver. Proceed cautiously to avoid damage to the case lugs. Should you lack experience, consult a qualified watchmaker.

Can I mount a quality aftermarket strap on this model?

Certainly. The SBGA362 accommodates any strap featuring a 20mm lug width. Artisan leather straps—alligatore, shell cordovan, or vegetable-tanned calf—integrate flawlessly and offer construction quality comparable to the timepiece itself, significantly enhancing overall aesthetic value.

How long does a quality leather strap last on this watch?

A high-quality vegetable-tanned leather strap typically lasts 3–5 years of regular wear, developing a distinctive patina that reflects the wearer's personal history. Shell cordovan, owing to its structural density, may extend 7–10 years of active use. Regular maintenance—gentle cleaning and occasional conditioning—substantially prolongs longevity.

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