Grand Seiko Quartz SBGX005 / 9F62-0A10 - Champagne Sunburst Dial · Original Steel Bracelet with GS Clasp · February 2004

This Grand Seiko, reference SBGX005 / 9F62-0A10, exemplifies the moment Grand Seiko definitively redefined the quartz watch. While quartz was largely perceived as a purely functional, industrial technology in the 1980s and early 1990s, Grand Seiko pursued a fundamentally different approach: maximum precision, uncompromising build quality, and a mechanical-like feel – yet with the advantages of state-of-the-art quartz technology.

The example offered here, with serial number 42xxxx, is in very good overall condition. Particularly noteworthy is the harmoniously aged, champagne-colored dial with a fine sunburst finish, which shimmers from a warm golden hue to bright silver depending on the light. The faceted, highly polished hour markers and the characteristically sharp hands exemplify what is meant by Grand Seiko-typical legibility: maximum clarity in any light situation.

The case has classic, balanced proportions and, with its 35.6 mm diameter, appears exceptionally elegant, yet absolutely timeless thanks to its clean lines and high-quality steel bracelet. The watch is worn on its original Grand Seiko steel bracelet with a GS-signed deployant clasp and conveys a remarkably high-quality, substantial feel on the wrist.

Historical Context – Grand Seiko and the Caliber 9F

With the introduction of the 9F caliber in 1993, Grand Seiko set a milestone in the history of the quartz watch. The goal was not merely to build a precise movement – but a movement that consciously distinguished itself from conventional quartz movements in terms of durability, service intervals, legibility, and long-term stability.

The result was a completely newly developed high-precision caliber that, in many respects, is more reminiscent of haute horlogerie than classic quartz technology. The 9F caliber remains a unique selling point of Grand Seiko to this day and forms the basis of the brand's worldwide reputation in the field of high-end quartz.

The 9F62 Quartz Caliber in Detail

The Caliber 9F62 is a three-hand quartz movement with date, designed for extreme accuracy, robustness, and long-term reliability.

Special features of the caliber:

• Thermo-compensated quartz oscillator for ultimate precision
• Selected quartz crystal, individually tuned to each movement
• Twin-pulse stepping motor, which precisely moves even heavy, faceted metal hands
• Backlash Auto-Adjust Mechanism, which eliminates the typical shudder of the second hand
• Sealed gear train with special lubricants for extremely long maintenance-free operation
• Instant date change mechanism

The nominal accuracy is ±10 seconds per year, which means this movement ranks among the absolute top of mechanically constructed quartz movements even by today's standards. The battery is designed for several years of operation without compromising on driving power.

Condition

• very good overall condition
• case with only slight, age-related signs of wear
• dial and hands very cleanly preserved
• original Grand Seiko steel bracelet with GS logo clasp
• technically fully functional

Technical Data (Excerpt)

• Reference: SBGX005 / 9F62-0A10
• Movement: Grand Seiko Quartz Caliber 9F62
• Functions: Hour, Minute, Second, Date
• Case Material: Stainless Steel
• Diameter: 35.6 mm
• Height: 10.4 mm
• Lug-to-Lug: 40.3 mm
• Lug Width: 18 mm
• Weight incl. steel bracelet: 102 g
• Crystal: Sapphire Crystal
• Bracelet: Original Grand Seiko stainless steel bracelet with GS deployant clasp, suitable for wrist circumferences up to approx. 17.5 cm

Warranty (used)
This is a used item. The statute of limitations for claims for defects (statutory warranty) is 12 months from delivery.

Note
As this is a used watch, no water resistance can be guaranteed. To protect the movement, the watch should not come into contact with water or moisture.