Heritage

Specifications

About this reference

In 1967, a new watch was added to the Grand Seiko Collection that was destined to become one of its defining creations. It was the 44GS, the first watch to embody the Grand Seiko Style, a design grammar comprising the nine principles that gave Grand Seiko its distinctive look and that still today, 55 years later, inspire each new creation. Exterior: Exterior: Ever brilliant steel, Caseback: Ever brilliant steel and sapphire crystal; Case back: See-through & Screw case back; Glass Material: Box shaped sapphire crystal; Glass Coating: Anti-reflective coating on inner surface; Case size: Diameter 40.0mm Lug-to-lug 47.2mm Thickness 11.7mm; Band width: 19mm; Clasp type: Folding clasp with push button release; The perimeter of Band: 195mm. Movement: Caliber no.: 9SA5 Instructions; Movement Type: Self-winding with manual-winding; Power reserve: Approx. 80 hours; Mean daily rate: +5 to -3 seconds per day Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.; Normal usage accuracy: +8 to -1 seconds per day. Functions: Water resistance: 10 bar; Magnetic resistance: 4,800 A/m; Weight: 154 g; Other details / Features: Screw-down crown.