Grand Seiko SBGC242

Features

Imaginative use of materials makes this Spring Drive Chronograph GMT as robust as it is dramatic.

This powerful watch allies all the high functionality of the Spring Drive Chronograph Caliber 9R86 with a uniquely ‘go-anywhere’ design and a new combination of materials. The result is a timepiece of rare refinement. The case is stainless steel, the bezel is in gold tone and catches the eye immediately with its dodecahedron shape, and the buttons are made of 18k yellow gold. Thanks to this combination of materials, it is both strikingly beautiful and highly durable. Furthermore, this may well be the world's most accurate spring-driven chronograph, with a precision of ±15 seconds a month, or ±1 second a day.

Specifications

Exterior

Exterior: Stainless steel (partly 18K yellow gold) / Ceramics bezel / Sapphire crystal case back

Case back: See-through & Screw case back

Glass Material: Dual-curved sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Case size: Diameter 43.8mm

Lug-to-lug 51.2mm

Thickness 16.1mm

Band width: 21mm

Clasp type: Three-fold clasp with push button release

The perimeter of Band: 201mm

Movement

Caliber no.: 9R86 Instructions

‍Movement Type: Spring Drive

Power reserve: Approx. 72 hours (3 days)

Accuracy: ±15 seconds per month (±1 second per day)

Functions

Water resistance: 10 bar

Magnetic resistance: 4,800 A/m

Other details / Features:

• 18K yellow gold crown
• Screw-down crown
• 50 jewels
• 24-hour hand (dual time display function)
• Chronograph with 30 minutes & 12 hours
• Power reserve indicator
• Calendar-linked time difference adjustment function