9S Mechanical
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Grand Seiko 9S Mechanical
“Our goal was to create the best possible mechanical watch for everyday use.”
This was the vision. Grand Seiko 9S Mechanical Caliber inherits the spirit of the first Grand Seiko from 1960; a timepiece crafted to the same exacting standards as the very best chronometers of its time.
As one of the very few fully integrated watch manufactures in the world, Grand Seiko possesses a mastery over the full breadth of the watchmaking process from the research and development of component materials to manufacture, assembly, adjustment, inspection and shipment.
Grand Seiko defines the essence of watchmaking in the elements of precision, beauty, legibility, durability and ease-of-use. As a world-leading watch manufacture, it embodies that very essence in the unrivaled quality in every watch presented to the world.
— The Shizuku-Ishi Watch Studio produces world-class mechanical watches with highly accurate movements and exquisite exterior design.

GRAND SEIKO SBGH368
- Exterior
Case Material 18K rose gold Case Back See-through screw Glass Material Box shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Brown crocodile leather Bezel Material Fixed 18k rose gold Dial Color Warm sakura-inspired pink textured represents a scene in which snow has covered the cherry blossoms known as sakura-kakushi with engraved rose gold tone Grand Seiko logo below the 12 o’clock position and Automatic Hi-Beat logo at 6 o'clock position Dial Hands Tempered rose gold tone hour, minute, second hand with Zaratsu polished Dial Markers Rose gold tone batons indexes with Zaratsu polished Crown Rose gold tone screw down at 3 o'clock position Case size Diameter 38 mm × Thickness 12.9 mm Lug to lug 44.7 mm Band width 20 mm Clasp type Rose gold pin buckle - Movement
Caliber no 9S85 Instructions Movement Type Automatic with manual winding Power reserve Approximately 55 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 Vibrations 36,000 vibrations per hour (10 beats per second) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m) Functions Hour, minute, second hand, date window at 3 o'clock Features - 37 jewels
- 18K rose gold clasp
- See-through screw case back
- Screw-down crown
- Sapphire crystal
- Date display

GRAND SEIKO STGK031
- Exterior
Case Material Stainless steel Case Back See-through screw with Grand Seiko lion emblem Glass Material Box shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Fixed polished stainless steel Dial Color Sakura-inspired pink textured Dial Hands Zaratsu polished stainless steel silver tone hour, minutes and second hand Dial Markers Indexes with Zaratsu polished silver tone stainless steel markers Crown Silver tone pull out at 3 o'clock position Case size Diameter 30 mm × Thickness 10.5 mm Lug to lug 36.2 mm Band width 15 mm The perimeter of Band 190 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9S27 Instructions Movement type Automatic with manual winding capacity Power reserve Approximately 50 hours Accuracy +8 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 +10 to -5 seconds per day - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m) Weight 75 g Features - 35 jewels
- Case back with lion emblem
- Date display
- Screw case back
- See-through case back
- Stop seconds hand function

GRAND SEIKO STGK033
- Exterior
Case Material Stainless steel Case Back See-through screw with Grand Seiko lion emblem Glass Material Box shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Fixed polished stainless steel Dial Color Sakura-inspired silvery textured Dial Hands Zaratsu polished stainless steel silver tone hour, minutes and second hand Dial Markers Indexes with Zaratsu polished silver tone stainless steel markers Crown Silver tone pull out at 3 o'clock position Case size Diameter 30 mm × Thickness 10.5 mm Lug to lug 36.2 mm Band width 15 mm The perimeter of Band 190 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9S27 Instructions Movement type Automatic with manual winding capacity Power reserve Approximately 50 hours Accuracy +8 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 +10 to -5 seconds per day - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m) Weight 75 g Features - 35 jewels
- Case back with lion emblem
- Date display
- Screw case back
- See-through case back
- Stop seconds hand function

GRAND SEIKO SLGH027
- Exterior
Case Material Ever brilliant steel Case Back Ever brilliant see-through screw and sapphire crystal Glass Material Box-shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Ever brilliant steel bracelet with clasp parts in rose gold and titanium Bezel Material Fixed polished ever brilliant steel Dial Color Ice light blue radial inspired by unprecedented Mount Iwate texture with engraved Grand Seiko logo below the 12 o’clock position and Automatic Hi-Beat logo at 6 o'clock position Dial Hands Tempered silver tone hour, minute and blue second hand with Zaratsu polished Dial Markers Silver tone batons and double batons at 12 o'clock with Zaratsu polished Crown Screw down at 3 o'clock position Case size Diameter 40 mm × Thickness 11.7 mm Lug to lug 47 mm Band width 22 mm The perimeter of Band 190 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9SA5 Instructions Movement Type Automatic with manual winding Power reserve Approximately 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 Vibrations 36,000 vibrations per hour (10 beats per second) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m) Weight 169 g Functions Hour, minute, second hand, date window at 3 o'clock Features - 47 jewels
- LIMITED EDITION on the case back
- Serial number engraved on the case back
- Date display
- See-through case back
- Screw-down crown

GRAND SEIKO SBGH301
- Exterior
Case Material Ever brilliant steel Case Back See-through ever brilliant steel Glass Material Dual-curved sapphire crystal Glass Coating Anti-reflective coating on inner surface Band Material Ever-brilliant steel bracelet Bezel Material Fixed polished ever-brilliant steel Dial Color Black radial pattern with engraved Grand Seiko logo below the 12 o’clock position and Automatic Hi-Beat logo at 6 o'clock position Dial Hands Tempered silver tone hour, minute, second hand with Zaratsu polished Dial Markers Silver tone batons indexes with Zaratsu polished Crown Screw down at 3 o'clock position Case size Diameter 40 mm × Thickness 13.3 mm Lug to lug 46.2 mm Band width 19 mm The perimeter of Band 200 mm Clasp type Three-fold clasp with push button release - Movement
Caliber no 9S85 Instructions Movement Type Automatic with manual winding Power reserve Approximately 55 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 Vibrations 36,000 vibrations per hour (10 beats per second) - Functions / Specifications
Water resistance 10 bar Magnetic resistance Equipped (4,800 A/m) Weight 154 g Functions Hour, minute, second hand, date window at 3 o'clock with black background Features - 37 jewels
- Screw-down crown
- Ever brilliant steel
- See-through case back with lion emblem
- Sapphire crystal
- Date display