Evolution 9 Collection The Tentagraph SLGC001

High-beat precision and three days of power reserve come together in the Tentagraph, with a dial inspired by Mt. Iwate.

SLGC001G

SLGC001

Evolution 9 Collection

EUR 15 000,00

  • Available at the Grand Seiko Boutiques and Grand Seiko Salons

Features

This model’s case design has evolved with a sporty character based on the Evolution 9 Style, a design language that represents a step forward for the Grand Seiko Style. The watch’s dial captures the serene beauty of a snowy moonlit night over Mt. Iwate, as seen from the Grand Seiko Studio Shizukuishi, the home of Grand Seiko’s mechanical watchmaking. The movement inside is the Caliber 9SC5, Grand Seiko’s first mechanical chronograph “Tentagraph.” Even with its 10-beat frequency, this movement achieves an impressive power reserve of approximately 72 hours (about three days) when fully wound.

Specifications

Exterior
Exterior: High-Intensity Titanium with ceramic bezel
Case back: See-through & Screw case back
Glass Material: Box shaped sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
LumiBrite: Lumibrite on hands and index(es)
Case size: Diameter 43.2mm Lug-to-lug 51.5mm Thickness 15.3mm
Band width: 23mm
Clasp type: Three-fold clasp with push button release
Movement
Caliber no.: 9SC5 Instructions
Movement Type: Automatic with manual winding
Power reserve: Approx. 72 hours(3 days)
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
  • Allergy-safe metal
  • Tachymeter function
  • 60 jewels
  • Chronograph with 30 minutes & 12 hours

An Evolution 9 sport design that enhances functionality.

The Evolution 9 Style represents the essence of Grand Seiko’s design philosophy, harmoniously blending Japanese aesthetics with refined craftsmanship. Based on this design language, this model adopts a form that ensures intuitive usability and excellent operability in any situation. The tachymeter bezel is made of highly scratch-resistant ceramic, allowing it to maintain its refined appearance over time.

Details about the Evolution 9 Style

A dial designed in pursuit of the ideal chronograph

The dial design follows the Evolution 9 Style and adopts a traditional chronograph layout. The distinctive hour and minute hands, along with the indexes with Lumibrite, are positioned with minimal clearance to enhance not only legibility during time measurement but also overall time readability. Mt. Iwate, visible from the Grand Seiko Studio Shizukuishi, serves as a source of inspiration and a spiritual anchor for the craftspeople. The dial combines a delicate pattern inspired by the mountain’s surface with a transparent blue tone, expressing the starry sky that spreads above its summit. This design reflects a vision of reaching the pinnacle of the ideal chronograph.

Features of the Tentagraph Caliber 9SC5

The Tentagraph’s name describes key features of the Caliber 9SC5 movement inside: Ten beats per second, three days of power reserve, automatic winding, and the fact that it is a chronograph.
Fully wound, the watch runs for 72 hours when the chronograph is in operation.

Details of Caliber 9SC5