Seiko’s 1965 Heritage Diver has always occupied a particularly appealing corner of the Prospex catalogue.
It has the clean, almost spare geometry of the brand’s first dive watch, but in its current form it’s a properly modern instrument rather than a nostalgia piece.
The new Prospex 1965 Heritage Diver HBC010 leans into that balance with a dark green and gilt palette inspired by Lake Hallstatt in Austria, and it’s being made only for Europe.

At a glance
- Seiko has introduced the Prospex 1965 Heritage Diver HBC010 as a Europe-exclusive limited edition of 1,400 pieces.
- The watch pairs a dark green sunray dial and matching bezel tone with gilt accents, cream Lumibrite and the updated 40mm Heritage Diver case.
- It is priced at EUR 1,650 and includes both a steel bracelet and an additional black silicone strap.
A 62MAS silhouette with a colder European mood
The HBC010 belongs to the modern Prospex line descended from Seiko’s 62MAS, the 1965 model that marked the brand’s first purpose-built dive watch.
That ancestry still shows clearly in the compact case shape, the broad bezel, the unfussy dial layout and the crown at 3 o’clock.
Within Seiko’s dive-watch world, this model sits in a sweet spot.

It’s more historically direct than many of the brand’s other Prospex divers, but it doesn’t chase vintage charm at the expense of everyday practicality.
The current generation introduced a more refined case profile, trimming the diameter to 40mm and the lug-to-lug measurement to 46.4mm.
Those numbers matter because they keep the watch wearable for a wide range of wrists while preserving enough presence for a serious dive watch.

Case thickness is 13mm, which is reasonable given the automatic movement, domed sapphire crystal and 300m water-resistance rating.
The essentials are all here, including a screw-down crown, screwed caseback, unidirectional 60-minute bezel and curved sapphire crystal with anti-reflective coating on the inner surface.
Dark green, gilt accents and cream Lumibrite
The defining feature of the HBC010 is its colour work.

Seiko has used a dark green tone across the dial and bezel, with the latter kept subtle enough that it doesn’t dominate the watch at first glance.
The dial has a sunray-brushed finish, which should give the green more range than a flat matte surface would allow.
Gold-coloured markers and hands bring warmth to the composition, while cream-toned Lumibrite inserts soften the overall look without pushing it into costume-vintage territory.

The bezel insert is metal with a grained matte finish and cream-coloured markings.
That detail is easy to overlook, but it helps the watch avoid the glossy, high-contrast look common to many modern dive watches.
The date remains in a circular aperture at 4:30.

It’s a familiar Seiko placement and one that tends to divide opinion, though here it keeps the main hour-marker layout largely intact.
The Lake Hallstatt inspiration makes sense without needing to be taken too literally.
This isn’t a landscape printed on a dial or a novelty colourway, but rather a cooler, more atmospheric version of an already established design.

The 6R55 and the bracelet upgrade are the practical story
Inside the HBC010 is Seiko’s automatic Calibre 6R55.
It runs at 21,600 vibrations per hour, uses 24 jewels and offers a 72-hour power reserve.
That three-day autonomy is one of the most useful upgrades in this tier of mechanical watchmaking, especially for owners who rotate between several watches during the week.

The movement provides central hours, minutes and seconds, hacking seconds and a date display.
It isn’t the most decorative proposition in the segment, but the point here is reliability, practicality and independence from daily winding.
The HBC010 is delivered on a three-link stainless steel bracelet with rounded links.

It also uses the updated folding clasp with a multi-step diver’s extension system, giving 15mm of adjustment in six increments of 2.5mm.
The adjustment is operated by pressing side buttons, which makes it more convenient for wetsuit use and daily wrist-size changes alike.
Seiko also includes a black silicone strap with its own pin buckle.

That second strap is a welcome addition because it gives the watch a more casual, utilitarian character without asking the owner to source an aftermarket option immediately.
Details & Specifications
| Brand | Seiko |
|---|---|
| Model | Prospex 1965 Heritage Diver HBC010 Limited Edition |
| Case size | 40mm diameter, 13.0mm thickness, 46.4mm lug-to-lug |
| Case material | Stainless steel with brushed and polished finishing |
| Bezel | Unidirectional bezel with dark green and gilt metal insert and 60-minute scale |
| Crystal | Curved sapphire crystal with anti-reflective coating on the inner surface |
| Water resistance | 300m |
| Dial | Sunray-brushed dark green dial with embossed gilt markers |
| Lume | Lumibrite on hands and indexes |
| Date | Circular date window at 4:30 |
| Movement | Seiko Calibre 6R55 automatic |
| Frequency | 21,600 vibrations per hour |
| Jewels | 24 |
| Power reserve | 72 hours |
| Functions | Hours, minutes, hacking seconds and date |
| Bracelet | Three-link stainless steel bracelet with folding clasp and multi-step diver’s extension |
| Additional strap | Black silicone strap with pin buckle |
| Production | Limited edition of 1,400 pieces |
| Market | European exclusive |
| Price | EUR 1,650 |
The HBC010 should appeal most to collectors who like the 62MAS lineage but want something less common than a standard catalogue model.
Its green-and-gilt execution adds personality without obscuring the functional strengths that make the 1965 Heritage Diver one of Seiko’s most convincing modern Prospex designs.






