Ref. STGK023
The Grand Seiko Heritage, reference STGK023, has a steel case measuring 27.8 mm in diameter and is set with diamonds. The blue dial has a silk-like moulded pattern with eleven diamond hour markers. Measuring 33.5 mm lug-to-lug, the case is 11.2 mm thick; water resistance is rated to 100 metres. Approximately 50 hours of power reserve is provided by self-winding calibre 9S27, with 35 jewels. The watch has a date display and a see-through case back. The steel bracelet has a folding clasp with push button release. Above the dial is a dual-curved sapphire crystal, with anti-reflective coating on its inner surface.
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TECHNICAL SPECIFICATIONS
CASE
Diameter
27.8mm
Thickness
11.2mm
Lug to Lug
33.5mm
Lug Width
13mm
Case Material
Steel
Water Resistance
100m
Crystal
Sapphire Crystal
MOVEMENT
Movement Type
Automatic
Caliber
9S27
Power Reserve
50h
Frequency
28,800 vph (4 Hz)
Jewels
35 jewels
DIAL
Dial Color
Blue
Numerals
Gemstones
BRACELET/STRAP
Bracelet/Strap
Steel
Clasp Type
Fold Clasp
FEATURES & COMPLICATIONS
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QUICK FACTS
BRAND
Grand SeikoREFERENCE
STGK023COLLECTION
HeritageMOVEMENT
AutomaticCALIBER
9S27CASE MATERIAL
SteelCRYSTAL
Sapphire CrystalWATER RESISTANCE
100m (swimming)FOR WATCH DEALERS
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