Aquastar Benthos Heritage II
The Aquastar Benthos Heritage II is a Swiss automatic dive watch with super-compressor case, 300 m water resistance, sapphire crystal and signed crown.
Technical SPECIFICATIONS:
- Case: Aesthetics of the original Benthos 500 from 1970 in a smaller form factor of 40mm, 904L Stainless steel case (44mm lug-to-lug), crown at 2:00, Manual Helium Release Valve at 4:00
- Movement: Swiss-made Swiss Selitta SW200-1, hours, minutes, seconds
- Water Resistance: 300 meters, 1000 feet
- Crystal: Flat, triple-coated AR sapphire
- Dial: Semi-gloss Black, applied hour markers with high density SuperLuminova filling
- Bezel: Unidirectional 120 click rotating elapsed time ceramic bezel
- Straps: Black Genuine ISOfrane® strap
- Limited Edition: 500 pieces
BOR bracelet option available to order; please choose (strap/bracelet option)
Delivery: First batch sold out, second batch available, ships with 2 business days
In stock. Ships within 24 hours from Bienne.
RE-INVENTING THE ICONIC BENTHOS 500
Ahistoric diver in a contemporary size
Inspired by the legendary Aquastar Benthos from the 1970s, the Benthos Heritage II is not merely a re-edition but a visionary interpretation of how the original creators might’ve evolved this horological icon.
Drawing inspiration from recently discovered sketches in the Aquastar archives, this new model seamlessly blends vintage character with modern stature.
“The Benthos Heritage II represents a perfect fusion of the rich heritage of the Benthos and contemporary proportions of 40mm and 12mm height,”. “It’s a testament to our commitment to carry the torch of our founders into a bright future for Aquastar.”
Heart of the Benthos Heritage II
At the heart of the Benthos Heritage II is a series of core characteristics that were requested by the Aquastar community over the past 5 years. “We listened carefully to the feedback and requests of our supportive community on our official forum and on social media, and incorporated these features into the Benthos Heritage II”
BENTHOS iconic Design
Echoing the archival sketches, the watch boasts two signature crowns positioned at 2 and 4 o’clock, offering both functionality and distinctive aesthetics.
“With every Aquastar release, we try to look at the product cycles introduced by the brand’s original founder, Frederic Robert, and look ahead to what he might still be producing, had the brand never been paused during the quartz crisis,”. “We are proud to be both historians and custodians of this rich brand, using the new Benthos Heritage II to pay tribute to Aquastar’s influence and innovations in the Dive Watch world.
40mm diameter and 12mm height
With its water-resistance accordingly readjusted from 500m to a still very respectable 300m, owing to the small form factor but also, to help more clearly distinguish it from its bigger brothers, bearing the Benthos 500 name.
Technical specifications
Aquastar Benthos Heritage II: every measurement, grade, and line.
In the field
Aquastar Benthos Heritage II
In the field
The Aquastar Benthos Heritage II, photographed by the divers who wear it.
Gallery
Aquastar Benthos Heritage II, in photographs.
27 photographs from the Aquastar archive. Click any image to enlarge.
Questions
Before you order.
How does the Benthos H2 differ from the H1?
The Heritage II is built on a smaller 40mm case (44mm lug-to-lug) made from premium 904L stainless steel, the same high-grade steel used in luxury watches, rather than the standard 316L found in the other Benthos models. It also adds a Manual Helium Release Valve at 4:00, a feature required for saturation diving where watches are used in hyperbaric chambers.
What is a Helium Escape Valve and why does it matter?
During saturation diving, divers live in pressurized environments for days or weeks. Tiny helium molecules penetrate the watch seals and, during decompression, can build up enough pressure to pop the crystal off. The Helium Escape Valve (HEV) allows the gas to safely escape. Its presence signals that this watch is designed for professional-grade deep sea use.
What is 904L stainless steel?
904L is a superalloy stainless steel with higher resistance to corrosion, particularly from saltwater and chlorine, compared to standard 316L. It is harder to machine but results in a more durable and lustrous finish, a significant materials upgrade.
Is this a limited edition?
Yes, limited to 500 pieces. Each model is individually numbered and engraved on the caseback.
What dial options are available?
The Benthos H2 comes in two dial colors: black and blue.
Ready to order?
Aquastar Benthos Heritage II
Reserve and check out securely on aquastar.ch. Every piece built, tested, and engraved with its serial number in our Bienne workshop.
Order on aquastar.ch →The collection
Explore all Benthos.
Every variation in the family, side by side. Dial colours, case finishes, materials, with a direct order link for each.
Aquastar · Swiss · Since 1962
A working tool, not a fashion statement.
Swiss dive watches, made in Bienne, built for the depth.