Grand Seiko

SBGA437

Also sold as SBGA437G

Availability unknown All SBGA references

Caliber: 9R65
Case diameter: 40mm
Water resistance: 100 m
Power reserve: 72h

Grand Seiko SBGA437: caliber 9R65, 40 mm case, 100 m water resistance.

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Specifications

Specifications from Grand Seiko, last seen 2026-09-21.

Movement

Caliber: 9R65 All 9R65 watches
Movement: Spring Drive
Power reserve: 72h

Case & crystal

Case material: Stainless steel
Case diameter: 40mm
Case thickness: 12.3mm
Lug to lug: 46.6mm
Lug width: 20mm
Crystal: Dual-curved sapphire crystal

Resistance

Water resistance: 100 m
Magnetic resistance: 4,800 A/m

Catalogue

Family: SBGA

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Variants

Same watch, different market or bracelet

Reference	Edition	Region	Band	Clasp	Weight
SBGA437G	G	—	—	Folding clasp with push button release	—

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