Heritage Collection Annual Accuracy Quartz SBGX365

The compact 9F quartz “Hana-Ikada Blue,” evoking cherry blossom petals floating on a river under the moonlight

SBGX365G

SBGX365

Heritage Collection

Jan. 2027 Release

Features

To look closely at the dial is to be transported to a serene spring scene, just after the vernal equinox, when cherry blossom petals scattered by the wind blanket the surface of a river like floating rafts. Under the soft glow of a hazy moon, this fleeting beauty becomes a dreamlike nightscape. The timepiece captures this enchanting moment with its textured dial and deep-blue color. It is equipped with the most compact movement in the 9F series, the Caliber 9F51, which maintains exceptional accuracy and performance. The 32.3mm stainless steel case offers a refined, wrist-friendly size, paired with a clean dial without a day or date display for a minimalist aesthetic.

Specifications

Exterior
Exterior: Stainless steel
Case back: Screw case back
Glass Material: Box shaped sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 32.3mm Lug-to-lug 39.0mm Thickness 9.0mm
Band width: 15mm
Clasp type: Three-fold clasp with push button release
Movement
Caliber no.: 9F51 Instructions
Movement Type: Quartz
Accuracy: ±10 seconds per year
Functions
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m

A dial inspired by moonlit cherry blossoms

In Japan, the year has traditionally been divided into 24 seasonal phases to observe the subtle transitions of nature. People have long appreciated the beauty of each moment, embraced the blessings unique to each season, and lived in harmony with nature. This timepiece draws inspiration from a poetic springtime scene, a vision of cherry blossoms scattered by the wind, drifting across a river under the hazy glow of the moon. The dial’s serene blue tone evokes this enchanting image, where petals illuminated by moonlight create a dreamlike tableau of spring. Paired with the SBGX363 “Hana-Ikada 32,” it allows the wearer to experience the essence of Japanese spring across day and night, which is an invitation to savor the artistry of Grand Seiko.

Learn more about SBGX363

A case design that modernizes the 62GS, a milestone in Grand Seiko’s history

Grand Seiko’s first automatic watch, the 62GS, was introduced in 1967. Its most distinctive feature is almost certainly its bezel-less structure, in which the glass is directly fixed to the case body. This design reduces the visual thickness of the watch while allowing light to enter the dial from multiple angles. This model inherits the bezel-less structure and other design elements of the original 62GS from 1967, while refining aspects such as wearability and crown operability to achieve a more contemporary design. The bracelet features a tapered design for a natural fit and a sharp, elegant look on the wrist.

Caliber 9F51

Caliber 9F51 marks the most compact 9F caliber design to date. It retains hallmark features of the 9F series, including the Twin Pulse Control Motor, the Backlash Auto-Adjust Mechanism and a regulation switch for manual fine-tuning of accuracy during servicing.

Details of Caliber 9F51

Option strap

Strap

RG03W15BK

Band width: 15mm
Clasp width: 13mm
Color: Black
Material: Crocodile

Strap

RG03W15BN

Band width: 15mm
Clasp width: 13mm
Color: Brown
Material: Crocodile

Strap

RG03W15NY

Band width: 15mm
Clasp width: 13mm
Color: Navy
Material: Crocodile