H08 Fiberglass Watch With Green Rubber Strap

Description of the Watch

The Hermès H08, reference W402991WW00, is a contemporary and athletic timepiece built for performance and expression. Featuring a 42 mm case crafted from braided and metallized fiberglass composite, enhanced with aluminum and slate powder, this model pairs high-tech construction with bold design. Its concrete-colored dial, vibrant green rubber strap, and Hermès H1837 Manufacture movement combine to deliver both aesthetic impact and mechanical precision.

Overview

Designed for dynamic lifestyles and refined tastes, the H08 with green rubber strap blends unconventional materials with a bold urban spirit. Made in Switzerland, it delivers the reliability of fine horology with the daring of modern aesthetics.

Design and Craftsmanship

The case is composed of braided and metallized fiberglass, layered with aluminum and slate powder for a mineral-rich surface that feels both industrial and refined. Its sunburst satin-finished black ceramic bezel features mirror-polished chamfers that catch the light with elegance. The dial, in varnished and grained concrete grey, adds texture and is contrasted by rhodium-plated Arabic numerals and hands coated in Super-LumiNova® for excellent readability. A black-tinted sapphire caseback and anti-reflective crystal complete the sophisticated design.

Movement and Performance

At its core is the Hermès H1837 Manufacture movement—a self-winding mechanical caliber made entirely in Switzerland. With a 50-hour power reserve, it provides reliable, long-lasting performance. The movement powers the hour, minute, second, and date functions with seamless precision.

Features and Complications

This timepiece offers the following key features:

• Display of hours, minutes, and seconds

• Date function positioned at 4:30

• Water resistance to 10 bar (100 meters)

• Super-LumiNova® for superior low-light visibility

• Comfortable and vibrant green rubber strap secured with a titanium folding clasp

Specifications

Case

• Material: Composite of braided and metallized fiberglass with aluminum and slate powder surface

• Diameter: 39 mm

• Lug-to-Lug Height: 42 mm

• Bezel: Sunburst satin-finished black ceramic with mirror-polished chamfers

• Crystal: Anti-reflective sapphire crystal and black-tinted sapphire caseback

• Water Resistance: 10 bar / 100 meters

Dial

• Color: Concrete-colored, varnished and grained

• Hour Markers: Rhodium-plated Arabic numerals with Super-LumiNova®

• Hands: Rhodium-plated with Super-LumiNova® coating

Bracelet/Strap

• Type: Single-turn

• Material: Green rubber

• Clasp: Satin-finished black DLC-treated titanium folding clasp

Movement

• Caliber: Hermès H1837 Manufacture

• Type: Self-winding mechanical

• Functions: Hour, minute, second, date at 4:30

• Power Reserve: Approximately 50 hours

• Origin: Made in Switzerland